| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" standalone="yes" encoding="windows-1252"?> |
<!-- XBRL Document Created with XBRLMaster --> |
<!-- Version: 1.3.08 --> |
<!-- Based on XBRL 2.1 --> |
<!-- Date of creation: 10/21/2019 --> |
<!-- Copyright (c) 2019 NTDAS Inc. All Rights Reserved. --> |
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"> |
| <link:roleRef roleURI="http://devv.com/role/DocumentAndEntityInformation" xlink:href="devv-20190930.xsd#DocumentAndEntityInformation" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/ConsolidatedBalanceSheets" xlink:href="devv-20190930.xsd#ConsolidatedBalanceSheets" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="devv-20190930.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/ConsolidatedStatementsOfOperationsUnaudited" xlink:href="devv-20190930.xsd#ConsolidatedStatementsOfOperationsUnaudited" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/StatementsOfStockholdersEquityUnaudited" xlink:href="devv-20190930.xsd#StatementsOfStockholdersEquityUnaudited" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/ConsolidatedStatementsOfCashFlowsUnaudited" xlink:href="devv-20190930.xsd#ConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/OrganizationAndDescriptionOfBusiness" xlink:href="devv-20190930.xsd#OrganizationAndDescriptionOfBusiness" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="devv-20190930.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/GoingConcern" xlink:href="devv-20190930.xsd#GoingConcern" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/NotePayable" xlink:href="devv-20190930.xsd#NotePayable" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/ConvertibleNotePayable" xlink:href="devv-20190930.xsd#ConvertibleNotePayable" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/EQUITY" xlink:href="devv-20190930.xsd#EQUITY" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/RelatedTransactions" xlink:href="devv-20190930.xsd#RelatedTransactions" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/DiscontinuedOperations" xlink:href="devv-20190930.xsd#DiscontinuedOperations" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/SubsequentEvents" xlink:href="devv-20190930.xsd#SubsequentEvents" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="devv-20190930.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/OrganizationAndDescriptionOfBusinessDetailsNarrative" xlink:href="devv-20190930.xsd#OrganizationAndDescriptionOfBusinessDetailsNarrative" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/NotePayableDetailsNarrative" xlink:href="devv-20190930.xsd#NotePayableDetailsNarrative" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/ConvertibleNotePayableDetailsNarrative" xlink:href="devv-20190930.xsd#ConvertibleNotePayableDetailsNarrative" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/EquityDetailsNarrative" xlink:href="devv-20190930.xsd#EquityDetailsNarrative" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/RelatedTransactionsDetailsNarrative" xlink:href="devv-20190930.xsd#RelatedTransactionsDetailsNarrative" xlink:type="simple"/> |
| <link:roleRef roleURI="http://devv.com/role/DiscontinuedOperationsDetails" xlink:href="devv-20190930.xsd#DiscontinuedOperationsDetails" xlink:type="simple"/> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/DocumentAndEntityInformation" xlink:title="00000001 - Document - Document and Entity Information"> |
| | <link:loc xlink:type="locator" xlink:href="devv-20190930.xsd#devv_DocumentAndEntityInformationAbstract" xlink:label="loc_devvDocumentAndEntityInformationAbstract"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_deiEntityRegistrantName"/> |
| | <link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntityRegistrantName" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_deiEntityCentralIndexKey"/> |
| | <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntityCentralIndexKey" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentType" xlink:label="loc_deiDocumentType"/> |
| | <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiDocumentType" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_deiAmendmentFlag"/> |
| | <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiAmendmentFlag" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_deiCurrentFiscalYearEndDate"/> |
| | <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiCurrentFiscalYearEndDate" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntitySmallBusiness" xlink:label="loc_deiEntitySmallBusiness"/> |
| | <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntitySmallBusiness" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityShellCompany" xlink:label="loc_deiEntityShellCompany"/> |
| | <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntityShellCompany" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_deiEntityEmergingGrowthCompany"/> |
| | <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntityEmergingGrowthCompany" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_deiEntityCurrentReportingStatus"/> |
| | <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntityCurrentReportingStatus" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_deiDocumentPeriodEndDate"/> |
| | <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiDocumentPeriodEndDate" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_deiEntityFilerCategory"/> |
| | <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntityFilerCategory" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_deiDocumentFiscalPeriodFocus"/> |
| | <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiDocumentFiscalPeriodFocus" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_deiDocumentFiscalYearFocus"/> |
| | <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiDocumentFiscalYearFocus" xlink:type="arc"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_deiEntityCommonStockSharesOutstanding"/> |
| | <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_devvDocumentAndEntityInformationAbstract" xlink:to="loc_deiEntityCommonStockSharesOutstanding" xlink:type="arc"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/ConsolidatedBalanceSheets" xlink:title="0000002 - Statement - CONSOLIDATED BALANCE SHEETS"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaapStatementOfFinancialPositionAbstract_0e8383506b60468ea2b8c4bd1905aa72"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaapAssetsCurrentAbstract_03366b3e0a6f41a0805793df28c6b523"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfFinancialPositionAbstract_0e8383506b60468ea2b8c4bd1905aa72" xlink:to="loc_us-gaapAssetsCurrentAbstract_03366b3e0a6f41a0805793df28c6b523" order="1"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssets" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssets_a7464ad9779441259e7d241f3ae3f801"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsCurrentAbstract_03366b3e0a6f41a0805793df28c6b523" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssets_a7464ad9779441259e7d241f3ae3f801" order="2"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent_7679559496734920b044caefc93be387"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsCurrentAbstract_03366b3e0a6f41a0805793df28c6b523" xlink:to="loc_us-gaapAssetsCurrent_7679559496734920b044caefc93be387" order="3"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets_2ab154a5247b460dbe6c58d2d1882ae8"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsCurrentAbstract_03366b3e0a6f41a0805793df28c6b523" xlink:to="loc_us-gaapAssets_2ab154a5247b460dbe6c58d2d1882ae8" order="4"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsCurrentAbstract_03366b3e0a6f41a0805793df28c6b523" xlink:to="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" order="5"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrent_738cd678c2ae40ceb55caedad5502205"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrent_738cd678c2ae40ceb55caedad5502205" order="6"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrent_827716e458ea4ee28f1bb2d4f97965fe"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapAccruedLiabilitiesCurrent_827716e458ea4ee28f1bb2d4f97965fe" order="7"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" xlink:label="loc_us-gaapDueToRelatedPartiesCurrent_2e4547ec647140e3b9d200488e132055"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapDueToRelatedPartiesCurrent_2e4547ec647140e3b9d200488e132055" order="8"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConvertibleNotesPayableCurrent" xlink:label="loc_us-gaapConvertibleNotesPayableCurrent_1a0c81f1b5c7448b978fe577deaebcc6"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapConvertibleNotesPayableCurrent_1a0c81f1b5c7448b978fe577deaebcc6" order="9"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesPayableCurrent" xlink:label="loc_us-gaapNotesPayableCurrent_bc72c60451544568b39c0558cbe7a3d5"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapNotesPayableCurrent_bc72c60451544568b39c0558cbe7a3d5" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent_719a40fd650d44c7919fbf5ccecf24eb"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapLiabilitiesCurrent_719a40fd650d44c7919fbf5ccecf24eb" order="11"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaapLongTermDebtCurrent_ac8a23483ede42269c1a70c6e88e0a6c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapLongTermDebtCurrent_ac8a23483ede42269c1a70c6e88e0a6c" order="12"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities_a9ffb9eef9274b4684fa4caf6396564f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapLiabilities_a9ffb9eef9274b4684fa4caf6396564f" order="13"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_8daef525a75849b894e7945c980aac1c" xlink:to="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b" order="14"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaapPreferredStockValue_7f030df75dc14658a6a19a5ab64057b1"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b" xlink:to="loc_us-gaapPreferredStockValue_7f030df75dc14658a6a19a5ab64057b1" order="15"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue_16cce192aa2c4eca99e9531cc0c8b2b5"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b" xlink:to="loc_us-gaapCommonStockValue_16cce192aa2c4eca99e9531cc0c8b2b5" order="16"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital_c960d8bc7ffe428e9875aaa39b6354c4"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b" xlink:to="loc_us-gaapAdditionalPaidInCapital_c960d8bc7ffe428e9875aaa39b6354c4" order="17"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit_daf8a147e5bf461da819f6a02152b820"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit_daf8a147e5bf461da819f6a02152b820" order="18"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity_e5e62c37f6374ed9b96aebc9d2b53dd2"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b" xlink:to="loc_us-gaapStockholdersEquity_e5e62c37f6374ed9b96aebc9d2b53dd2" order="19"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity_f381142ad25745c8be4342d38796221c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_ebdf09efcb5b4f00b6baf3343fd9fa0b" xlink:to="loc_us-gaapLiabilitiesAndStockholdersEquity_f381142ad25745c8be4342d38796221c" order="20"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:title="0000003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaapStatementOfFinancialPositionAbstract_ab3c12a866a343618c21052c39b695cf"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfFinancialPositionAbstract_ab3c12a866a343618c21052c39b695cf" xlink:to="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaapPreferredStockParOrStatedValuePerShare_190a193ebbf14c43ad72084e75b19901"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapPreferredStockParOrStatedValuePerShare_190a193ebbf14c43ad72084e75b19901" order="2"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaapPreferredStockSharesAuthorized_d464aff3b21f4d1ab1fc4f5a968fed6d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapPreferredStockSharesAuthorized_d464aff3b21f4d1ab1fc4f5a968fed6d" order="3"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaapPreferredStockSharesIssued_cd98b14d8ab34bc2bc574e27545bf501"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapPreferredStockSharesIssued_cd98b14d8ab34bc2bc574e27545bf501" order="4"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaapPreferredStockSharesOutstanding_906eb0037e124d99825129511c01136a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapPreferredStockSharesOutstanding_906eb0037e124d99825129511c01136a" order="5"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaapCommonStockParOrStatedValuePerShare_eb46ea7ff9124decb6a37d00e7aa6a40"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapCommonStockParOrStatedValuePerShare_eb46ea7ff9124decb6a37d00e7aa6a40" order="6"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaapCommonStockSharesAuthorized_d716402b199b4775b61879d524668430"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapCommonStockSharesAuthorized_d716402b199b4775b61879d524668430" order="7"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaapCommonStockSharesIssued_2596a582c33a44c1a57f159ad8df109e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapCommonStockSharesIssued_2596a582c33a44c1a57f159ad8df109e" order="8"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaapCommonStockSharesOutstanding_949e6bc949f24bb29028bda2157cc9ac"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_77ca29ee7e4d47838c2b3c3bf63e4ccf" xlink:to="loc_us-gaapCommonStockSharesOutstanding_949e6bc949f24bb29028bda2157cc9ac" order="9"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/ConsolidatedStatementsOfOperationsUnaudited" xlink:title="0000004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaapIncomeStatementAbstract_4ff991ff8f7b4407b327e8acd391a796"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaapRevenues_9a95878dd49c4961b65d2cb0145d4f04"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeStatementAbstract_4ff991ff8f7b4407b327e8acd391a796" xlink:to="loc_us-gaapRevenues_9a95878dd49c4961b65d2cb0145d4f04" order="1"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaapCostOfRevenue_27470ba01d49415d8dab32e9107d042e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeStatementAbstract_4ff991ff8f7b4407b327e8acd391a796" xlink:to="loc_us-gaapCostOfRevenue_27470ba01d49415d8dab32e9107d042e" order="2"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaapGrossProfit_ef8a7c34dfa04d99aacb1f854edb8203"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeStatementAbstract_4ff991ff8f7b4407b327e8acd391a796" xlink:to="loc_us-gaapGrossProfit_ef8a7c34dfa04d99aacb1f854edb8203" order="3"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeStatementAbstract_4ff991ff8f7b4407b327e8acd391a796" xlink:to="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9" order="4"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaapGeneralAndAdministrativeExpense_76b636fe3310493cb3b3b6c465ede740"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9" xlink:to="loc_us-gaapGeneralAndAdministrativeExpense_76b636fe3310493cb3b3b6c465ede740" order="5"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="loc_us-gaapProfessionalFees_36a78d173a0f4eab80d00972320dec05"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9" xlink:to="loc_us-gaapProfessionalFees_36a78d173a0f4eab80d00972320dec05" order="6"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DividendsSharebasedCompensationStock" xlink:label="loc_us-gaapDividendsSharebasedCompensationStock_11a791596add498098699f8b9963e770"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9" xlink:to="loc_us-gaapDividendsSharebasedCompensationStock_11a791596add498098699f8b9963e770" order="7"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses_9c3bbcb23de148c0a34ccebc3c72f4ef"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9" xlink:to="loc_us-gaapOperatingExpenses_9c3bbcb23de148c0a34ccebc3c72f4ef" order="8"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss_dabc8c0b48334def8c049ba67fa83a6d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9" xlink:to="loc_us-gaapOperatingIncomeLoss_dabc8c0b48334def8c049ba67fa83a6d" order="9"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract_b24990b1f93742d9bf743619a925dea9" xlink:to="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d" order="10"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaapInterestIncomeExpenseNet_dcd3cb0565a74644b1c60a997edfb694"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d" xlink:to="loc_us-gaapInterestIncomeExpenseNet_dcd3cb0565a74644b1c60a997edfb694" order="11"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpense_c41512fb849c48a7b1d85c37cc70b6a0"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d" xlink:to="loc_us-gaapOtherNonoperatingIncomeExpense_c41512fb849c48a7b1d85c37cc70b6a0" order="12"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_6a444d962b1e4c7da4a3145fcdffb874"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_6a444d962b1e4c7da4a3145fcdffb874" order="13"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentIncomeTaxExpenseBenefit_50a9e018636b4a32a295849cb79d43fe"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d" xlink:to="loc_us-gaapCurrentIncomeTaxExpenseBenefit_50a9e018636b4a32a295849cb79d43fe" order="14"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaapIncomeLossFromContinuingOperations_8e5565fd8e2d4f528d8350542c4f2d98"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d" xlink:to="loc_us-gaapIncomeLossFromContinuingOperations_8e5565fd8e2d4f528d8350542c4f2d98" order="15"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashIncludingDiscontinuedOperationsAbstract" xlink:label="loc_us-gaapCashIncludingDiscontinuedOperationsAbstract_a5a60ac5b2d54ae299497eb678423a5a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_b8f8b4788356474bb2a21748fbcb986d" xlink:to="loc_us-gaapCashIncludingDiscontinuedOperationsAbstract_a5a60ac5b2d54ae299497eb678423a5a" order="16"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CapitalExpenditureDiscontinuedOperations" xlink:label="loc_us-gaapCapitalExpenditureDiscontinuedOperations_64d1f5252efc4613ac1db01a68d32f7c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCashIncludingDiscontinuedOperationsAbstract_a5a60ac5b2d54ae299497eb678423a5a" xlink:to="loc_us-gaapCapitalExpenditureDiscontinuedOperations_64d1f5252efc4613ac1db01a68d32f7c" order="17"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:label="loc_us-gaapIncomeLossFromDiscontinuedOperationsNetOfTax_fbbe2607a58341e8b8ab86bfb5c870d8"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCashIncludingDiscontinuedOperationsAbstract_a5a60ac5b2d54ae299497eb678423a5a" xlink:to="loc_us-gaapIncomeLossFromDiscontinuedOperationsNetOfTax_fbbe2607a58341e8b8ab86bfb5c870d8" order="18"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss_93fffd3f16b34054bc5690192067655e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCashIncludingDiscontinuedOperationsAbstract_a5a60ac5b2d54ae299497eb678423a5a" xlink:to="loc_us-gaapNetIncomeLoss_93fffd3f16b34054bc5690192067655e" order="19"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="loc_us-gaapEarningsPerShareBasicAndDiluted_3ed5a3dbecaf4710a62127c1d8baefa5"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCashIncludingDiscontinuedOperationsAbstract_a5a60ac5b2d54ae299497eb678423a5a" xlink:to="loc_us-gaapEarningsPerShareBasicAndDiluted_3ed5a3dbecaf4710a62127c1d8baefa5" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaapWeightedAverageNumberOfSharesOutstandingBasic_9f006d1a8189482d9b8de83639cc3898"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCashIncludingDiscontinuedOperationsAbstract_a5a60ac5b2d54ae299497eb678423a5a" xlink:to="loc_us-gaapWeightedAverageNumberOfSharesOutstandingBasic_9f006d1a8189482d9b8de83639cc3898" order="21"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/StatementsOfStockholdersEquityUnaudited" xlink:title="0000005 - Statement - STATEMENTS OF STOCKHOLDERS EQUITY (Unaudited)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaapStatementOfStockholdersEquityAbstract_daa82b2c40024dea90ef97db0086e2ff"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_be33d8d9b4154c78be1733105ab10572"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfStockholdersEquityAbstract_daa82b2c40024dea90ef97db0086e2ff" xlink:to="loc_us-gaapStatementTable_be33d8d9b4154c78be1733105ab10572" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_be33d8d9b4154c78be1733105ab10572" xlink:to="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" order="2000"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis_7f47424d22474d5b8fa659fa0525df50"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_be33d8d9b4154c78be1733105ab10572" xlink:to="loc_us-gaapStatementEquityComponentsAxis_7f47424d22474d5b8fa659fa0525df50" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain_bb760037c27f4a05be96b18cf41ded19"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis_7f47424d22474d5b8fa659fa0525df50" xlink:to="loc_us-gaapEquityComponentDomain_bb760037c27f4a05be96b18cf41ded19" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaapPreferredStockMember_2ef2fe4cc2fe496089a55451e9ec851e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain_bb760037c27f4a05be96b18cf41ded19" xlink:to="loc_us-gaapPreferredStockMember_2ef2fe4cc2fe496089a55451e9ec851e" order="21"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember_62cec6a7b0cd4dd2aed8a9bf874bfd98"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain_bb760037c27f4a05be96b18cf41ded19" xlink:to="loc_us-gaapCommonStockMember_62cec6a7b0cd4dd2aed8a9bf874bfd98" order="22"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaapAdditionalPaidInCapitalMember_50c0ca1b86eb41e69108016da237242b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain_bb760037c27f4a05be96b18cf41ded19" xlink:to="loc_us-gaapAdditionalPaidInCapitalMember_50c0ca1b86eb41e69108016da237242b" order="23"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaapRetainedEarningsMember_231fba3b7f3248798b9da23709ca308f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain_bb760037c27f4a05be96b18cf41ded19" xlink:to="loc_us-gaapRetainedEarningsMember_231fba3b7f3248798b9da23709ca308f" order="24"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaapSharesIssued_82af70d7e68041b4bb2aa3dd8ebee447"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_us-gaapSharesIssued_82af70d7e68041b4bb2aa3dd8ebee447" order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity_983f6deff57b4d989eda69be8bce82ce"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_us-gaapStockholdersEquity_983f6deff57b4d989eda69be8bce82ce" order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss_a88ffce271ad4b0e8dfe18cc3d8f573b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_us-gaapProfitLoss_a88ffce271ad4b0e8dfe18cc3d8f573b" order="3"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesIssuedForServices_7ee386373027404da76eb7cb9f218a87"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesIssuedForServices_7ee386373027404da76eb7cb9f218a87" order="4"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueIssuedForServices_ab267c3f6c2a449c939d412401cb97eb"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueIssuedForServices_ab267c3f6c2a449c939d412401cb97eb" order="5"/> |
| | <link:loc xlink:type="locator" xlink:href="devv-20190930.xsd#devv_CommonStockIssuedForConversionOfDebtShares" xlink:label="loc_devvCommonStockIssuedForConversionOfDebtShares_497fd0cd902b466ca0f67cf3762346bb"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_devvCommonStockIssuedForConversionOfDebtShares_497fd0cd902b466ca0f67cf3762346bb" order="6"/> |
| | <link:loc xlink:type="locator" xlink:href="devv-20190930.xsd#devv_CommonStockIssuedForConversionOfDebtAmount" xlink:label="loc_devvCommonStockIssuedForConversionOfDebtAmount_058b5f52490c4bc6a257acd20a1bb9d1"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_devvCommonStockIssuedForConversionOfDebtAmount_058b5f52490c4bc6a257acd20a1bb9d1" order="7"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaapSharesIssued_8a48052f1c2c425ab4a0136ec78168be"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_us-gaapSharesIssued_8a48052f1c2c425ab4a0136ec78168be" order="8" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity_4745dabd43864fabb2059550ceb61046"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0ba7ba4acf5541ec9232e246395a5a28" xlink:to="loc_us-gaapStockholdersEquity_4745dabd43864fabb2059550ceb61046" order="9" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/ConsolidatedStatementsOfCashFlowsUnaudited" xlink:title="0000006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaapStatementOfCashFlowsAbstract_768304758fd5469985de8e11eb78780e"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_aedb1df65f96440499f918243cf14b78"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract_768304758fd5469985de8e11eb78780e" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_aedb1df65f96440499f918243cf14b78" order="1"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaapIncomeLossFromContinuingOperations_74490b4628ce4f088718d0d5cda7213a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_aedb1df65f96440499f918243cf14b78" xlink:to="loc_us-gaapIncomeLossFromContinuingOperations_74490b4628ce4f088718d0d5cda7213a" order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalBeforeIncomeTax" xlink:label="loc_us-gaapDiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalBeforeIncomeTax_abef91f9a015445cb533ea4a90864d5b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_aedb1df65f96440499f918243cf14b78" xlink:to="loc_us-gaapDiscontinuedOperationAmountOfAdjustmentToPriorPeriodGainLossOnDisposalBeforeIncomeTax_abef91f9a015445cb533ea4a90864d5b" order="3"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_eab479d085354ee1a9509de0f51abb3d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_aedb1df65f96440499f918243cf14b78" xlink:to="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_eab479d085354ee1a9509de0f51abb3d" order="4"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DividendsSharebasedCompensationStock" xlink:label="loc_us-gaapDividendsSharebasedCompensationStock_b351358053ec46d5920ddff21bac9e05"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_eab479d085354ee1a9509de0f51abb3d" xlink:to="loc_us-gaapDividendsSharebasedCompensationStock_b351358053ec46d5920ddff21bac9e05" order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_eab479d085354ee1a9509de0f51abb3d" xlink:to="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6" order="6"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaapIncreaseDecreaseInInventories_11c1f60ad55c4d88b2be59299e371a51"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6" xlink:to="loc_us-gaapIncreaseDecreaseInInventories_11c1f60ad55c4d88b2be59299e371a51" order="7"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="loc_us-gaapOtherNoncashIncomeExpense_a4d216581a4c4e3fb22b57ea45d7753e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6" xlink:to="loc_us-gaapOtherNoncashIncomeExpense_a4d216581a4c4e3fb22b57ea45d7753e" order="8" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_34e6acc02c484bb98c83a40831a526b6"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_34e6acc02c484bb98c83a40831a526b6" order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:label="loc_us-gaapDebtInstrumentIncreaseAccruedInterest_36cde1ffc99c4bf7b3a505a764ab2f1d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6" xlink:to="loc_us-gaapDebtInstrumentIncreaseAccruedInterest_36cde1ffc99c4bf7b3a505a764ab2f1d" order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities_0d09825adb6a4e16b6504c1c105b695b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities_0d09825adb6a4e16b6504c1c105b695b" order="11"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingCapitalAbstract_fbf32f4980934352ba01c1d4363510d6" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" order="12"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="loc_us-gaapProceedsFromRelatedPartyDebt_e2aae0a82b3f4e78bc4813cca2242295"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapProceedsFromRelatedPartyDebt_e2aae0a82b3f4e78bc4813cca2242295" order="13"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfDebt" xlink:label="loc_us-gaapRepaymentsOfDebt_a13a579af7a547aa8c1fbf216661973a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapRepaymentsOfDebt_a13a579af7a547aa8c1fbf216661973a" order="14"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromNotesPayable" xlink:label="loc_us-gaapProceedsFromNotesPayable_5fc2026dd246476ea5390ca915a0c479"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapProceedsFromNotesPayable_5fc2026dd246476ea5390ca915a0c479" order="15"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities_01b2f348b6b6437bb13af4517b3f167b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities_01b2f348b6b6437bb13af4517b3f167b" order="16"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaapCashAndCashEquivalentsPeriodIncreaseDecrease_ecdbfe1b8e5b4d10acbe167cdf7ca26a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapCashAndCashEquivalentsPeriodIncreaseDecrease_ecdbfe1b8e5b4d10acbe167cdf7ca26a" order="17"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue_ae00ab9ca4574255bc1f212fa2f9d3ba"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue_ae00ab9ca4574255bc1f212fa2f9d3ba" order="18" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaapCashAndCashEquivalentsAtCarryingValue_aed46317d27f4883bdf2891b3889e76c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapCashAndCashEquivalentsAtCarryingValue_aed46317d27f4883bdf2891b3889e76c" order="19" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaapSupplementalCashFlowInformationAbstract_c697d3745dd24be1846632991ca3a08e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_11ca665732b549d3bada4d547d13b0a8" xlink:to="loc_us-gaapSupplementalCashFlowInformationAbstract_c697d3745dd24be1846632991ca3a08e" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaapInterestPaid_65c1fad627aa40c88698975626510269"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSupplementalCashFlowInformationAbstract_c697d3745dd24be1846632991ca3a08e" xlink:to="loc_us-gaapInterestPaid_65c1fad627aa40c88698975626510269" order="21"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaapIncomeTaxesPaid_5036cdbacced491c8c66856ab5c64d5c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSupplementalCashFlowInformationAbstract_c697d3745dd24be1846632991ca3a08e" xlink:to="loc_us-gaapIncomeTaxesPaid_5036cdbacced491c8c66856ab5c64d5c" order="22"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueConversionOfConvertibleSecurities_b4452fa09d974aea82f815aeac46aebb"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSupplementalCashFlowInformationAbstract_c697d3745dd24be1846632991ca3a08e" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueConversionOfConvertibleSecurities_b4452fa09d974aea82f815aeac46aebb" order="23"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/OrganizationAndDescriptionOfBusiness" xlink:title="0000007 - Disclosure - ORGANIZATION AND DESCRIPTION OF BUSINESS"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract_0800ee4c79c64b6d99d409ebac801f0f"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="loc_us-gaapOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_bd857205518f4c2f89e48ff2a0fb0639"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_0800ee4c79c64b6d99d409ebac801f0f" xlink:to="loc_us-gaapOrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_bd857205518f4c2f89e48ff2a0fb0639" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/SummaryOfSignificantAccountingPolicies" xlink:title="0000008 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract_56edd67beeab4d948dc0bac79c1608f8"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaapSignificantAccountingPoliciesTextBlock_02e77b5e2502460181883b929dfbf065"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_56edd67beeab4d948dc0bac79c1608f8" xlink:to="loc_us-gaapSignificantAccountingPoliciesTextBlock_02e77b5e2502460181883b929dfbf065" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/GoingConcern" xlink:title="0000009 - Disclosure - GOING CONCERN"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RisksAndUncertaintiesAbstract" xlink:label="loc_us-gaapRisksAndUncertaintiesAbstract_ad81c790953e40ceb15cf339d8e3cfe5"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubstantialDoubtAboutGoingConcernTextBlock" xlink:label="loc_us-gaapSubstantialDoubtAboutGoingConcernTextBlock_26c94ea95a934e46a029a0e1bfd79f33"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRisksAndUncertaintiesAbstract_ad81c790953e40ceb15cf339d8e3cfe5" xlink:to="loc_us-gaapSubstantialDoubtAboutGoingConcernTextBlock_26c94ea95a934e46a029a0e1bfd79f33" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/NotePayable" xlink:title="000010 - Disclosure - NOTE PAYABLE"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaapDebtDisclosureAbstract_5fd0eed2ca9e46199b96ece5484f7d22"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="loc_us-gaapDebtDisclosureTextBlock_a486504ee84a44d593328f0a2db6f01d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDebtDisclosureAbstract_5fd0eed2ca9e46199b96ece5484f7d22" xlink:to="loc_us-gaapDebtDisclosureTextBlock_a486504ee84a44d593328f0a2db6f01d" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/ConvertibleNotePayable" xlink:title="000011 - Disclosure - CONVERTIBLE NOTE PAYABLE"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:label="loc_us-gaapConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_93d6c8ccd4e14d398bb8e4eda259d724"/> |
| | <link:loc xlink:type="locator" xlink:href="devv-20190930.xsd#devv_ConvertibleNotePayableTextBlock" xlink:label="loc_devvConvertibleNotePayableTextBlock_0ebaa45f0d3641478290a6b937004def"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_93d6c8ccd4e14d398bb8e4eda259d724" xlink:to="loc_devvConvertibleNotePayableTextBlock_0ebaa45f0d3641478290a6b937004def" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/EQUITY" xlink:title="000012 - Disclosure - EQUITY"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaapEquityAbstract_6af77a342a4f4a4bb6625424c02e3502"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentsTextBlock" xlink:label="loc_us-gaapEquityMethodInvestmentsTextBlock_0068c8c849b54d1c8cef527cd8e70e5a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityAbstract_6af77a342a4f4a4bb6625424c02e3502" xlink:to="loc_us-gaapEquityMethodInvestmentsTextBlock_0068c8c849b54d1c8cef527cd8e70e5a" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/RelatedTransactions" xlink:title="000013 - Disclosure - RELATED TRANSACTIONS"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaapRelatedPartyTransactionsAbstract_7623646343ce43b6bdf9f9ef7786c1f0"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_us-gaapRelatedPartyTransactionsDisclosureTextBlock_d8ac55ef0b4b4288a8d8d6326b012fe3"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionsAbstract_7623646343ce43b6bdf9f9ef7786c1f0" xlink:to="loc_us-gaapRelatedPartyTransactionsDisclosureTextBlock_d8ac55ef0b4b4288a8d8d6326b012fe3" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/DiscontinuedOperations" xlink:title="000014 - Disclosure - DISCONTINUED OPERATIONS"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaapDiscontinuedOperationsAndDisposalGroupsAbstract_20535add404e42e2b6b443f64759212c"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:label="loc_us-gaapDisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_12ec024d4e6a439783ab6c9c6c039f56"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDiscontinuedOperationsAndDisposalGroupsAbstract_20535add404e42e2b6b443f64759212c" xlink:to="loc_us-gaapDisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_12ec024d4e6a439783ab6c9c6c039f56" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/SubsequentEvents" xlink:title="000015 - Disclosure - SUBSEQUENT EVENTS"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaapSubsequentEventsAbstract_9cb7af1e80c840cfa92cfe05825c99f2"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaapSubsequentEventsTextBlock_28eed0a8eaef4a5195195a4c9768c78d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventsAbstract_9cb7af1e80c840cfa92cfe05825c99f2" xlink:to="loc_us-gaapSubsequentEventsTextBlock_28eed0a8eaef4a5195195a4c9768c78d" order="1"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:title="000016 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract_2c58d258b11e4c359a83d8caada91521"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="loc_us-gaapBasisOfAccountingPolicyPolicyTextBlock_66d82a46705648caa0f58df1588bf4f5"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_2c58d258b11e4c359a83d8caada91521" xlink:to="loc_us-gaapBasisOfAccountingPolicyPolicyTextBlock_66d82a46705648caa0f58df1588bf4f5" order="1"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:label="loc_us-gaapPriorPeriodReclassificationAdjustmentDescription_bb08313969e84cfb943689429bec780f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_2c58d258b11e4c359a83d8caada91521" xlink:to="loc_us-gaapPriorPeriodReclassificationAdjustmentDescription_bb08313969e84cfb943689429bec780f" order="2"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaapUseOfEstimates_38f109c111cd40799f54f3c647e6ab39"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_2c58d258b11e4c359a83d8caada91521" xlink:to="loc_us-gaapUseOfEstimates_38f109c111cd40799f54f3c647e6ab39" order="3"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/OrganizationAndDescriptionOfBusinessDetailsNarrative" xlink:title="000017 - Disclosure - ORGANIZATION AND DESCRIPTION OF BUSINESS (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract_bcf8404cd11c4c45987124900f599465"/> |
| | <link:loc xlink:type="locator" xlink:href="devv-20190930.xsd#devv_StateOfIncorporation" xlink:label="loc_devvStateOfIncorporation_42e71855fa5143ffb6a91e3f66c9cd86"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_bcf8404cd11c4c45987124900f599465" xlink:to="loc_devvStateOfIncorporation_42e71855fa5143ffb6a91e3f66c9cd86" order="1"/> |
| | <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityIncorporationDateOfIncorporation" xlink:label="loc_deiEntityIncorporationDateOfIncorporation_d7a5121115c74728959582ab8611c675"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_bcf8404cd11c4c45987124900f599465" xlink:to="loc_deiEntityIncorporationDateOfIncorporation_d7a5121115c74728959582ab8611c675" order="2"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/NotePayableDetailsNarrative" xlink:title="000018 - Disclosure - NOTE PAYABLE (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesPayableAbstract" xlink:label="loc_us-gaapNotesPayableAbstract_2705228baa6149bb83fe6478442ac47d"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotesPayableCurrent" xlink:label="loc_us-gaapNotesPayableCurrent_ced18e882ded479fb6775bf0e6ac0abe"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNotesPayableAbstract_2705228baa6149bb83fe6478442ac47d" xlink:to="loc_us-gaapNotesPayableCurrent_ced18e882ded479fb6775bf0e6ac0abe" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableInterestBearingInterestRate" xlink:label="loc_us-gaapAccountsPayableInterestBearingInterestRate_0e7d5e97a07046c499ebe8deb49ef8f7"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNotesPayableAbstract_2705228baa6149bb83fe6478442ac47d" xlink:to="loc_us-gaapAccountsPayableInterestBearingInterestRate_0e7d5e97a07046c499ebe8deb49ef8f7" order="2"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaapLongTermDebtCurrent_17f6d6db19fd4b849eed55bc9d66f63f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNotesPayableAbstract_2705228baa6149bb83fe6478442ac47d" xlink:to="loc_us-gaapLongTermDebtCurrent_17f6d6db19fd4b849eed55bc9d66f63f" order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaapInterestExpense_b3af8e8d7bb742a3bc9d3e864c88bfe5"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNotesPayableAbstract_2705228baa6149bb83fe6478442ac47d" xlink:to="loc_us-gaapInterestExpense_b3af8e8d7bb742a3bc9d3e864c88bfe5" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesNoncurrent" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesNoncurrent_5a956720f10f4e3492d7ad0c6cfefd7c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNotesPayableAbstract_2705228baa6149bb83fe6478442ac47d" xlink:to="loc_us-gaapAccountsPayableAndAccruedLiabilitiesNoncurrent_5a956720f10f4e3492d7ad0c6cfefd7c" order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/ConvertibleNotePayableDetailsNarrative" xlink:title="000019 - Disclosure - CONVERTIBLE NOTE PAYABLE (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:label="loc_us-gaapConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_284836a55dc44c3a8a55c49d0f8fcc12"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_c3e88e3920b946e5a4ed8309e56c1434"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_284836a55dc44c3a8a55c49d0f8fcc12" xlink:to="loc_us-gaapStatementTable_c3e88e3920b946e5a4ed8309e56c1434" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_c3e88e3920b946e5a4ed8309e56c1434" xlink:to="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" order="2000"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeAxis" xlink:label="loc_us-gaapShortTermDebtTypeAxis_59d9bc24d49548b583b0cc60ad57fd38"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_c3e88e3920b946e5a4ed8309e56c1434" xlink:to="loc_us-gaapShortTermDebtTypeAxis_59d9bc24d49548b583b0cc60ad57fd38" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="loc_us-gaapShortTermDebtTypeDomain_6677155845e34335bb2f6f86ece4c87e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShortTermDebtTypeAxis_59d9bc24d49548b583b0cc60ad57fd38" xlink:to="loc_us-gaapShortTermDebtTypeDomain_6677155845e34335bb2f6f86ece4c87e" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConvertibleNotesPayableMember" xlink:label="loc_us-gaapConvertibleNotesPayableMember_c6ba561a1e284f7aa79cd4e00f3cf3ea"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShortTermDebtTypeDomain_6677155845e34335bb2f6f86ece4c87e" xlink:to="loc_us-gaapConvertibleNotesPayableMember_c6ba561a1e284f7aa79cd4e00f3cf3ea" order="21"/> |
| | <link:loc xlink:type="locator" xlink:href="devv-20190930.xsd#devv_ConvertibleNotesPayableOneMember" xlink:label="loc_devvConvertibleNotesPayableOneMember_911bf4a84c1c4b6da607de8af087c5d6"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShortTermDebtTypeDomain_6677155845e34335bb2f6f86ece4c87e" xlink:to="loc_devvConvertibleNotesPayableOneMember_911bf4a84c1c4b6da607de8af087c5d6" order="22"/> |
| | <link:loc xlink:type="locator" xlink:href="devv-20190930.xsd#devv_ConvertibleNotesPayableTwoMember" xlink:label="loc_devvConvertibleNotesPayableTwoMember_0c3b0ed135294825adfd69b6bbb594e2"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShortTermDebtTypeDomain_6677155845e34335bb2f6f86ece4c87e" xlink:to="loc_devvConvertibleNotesPayableTwoMember_0c3b0ed135294825adfd69b6bbb594e2" order="23"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConvertibleDebt" xlink:label="loc_us-gaapConvertibleDebt_603fd1c59c3d48769288381e463ef1ad"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapConvertibleDebt_603fd1c59c3d48769288381e463ef1ad" order="1"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaapInterestPayableCurrent_b343352949eb4f61ac4b7ff7d6696147"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapInterestPayableCurrent_b343352949eb4f61ac4b7ff7d6696147" order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaapInterestExpenseDebt_2d6081a7033a4bad8e40f79d9d3b09bd"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapInterestExpenseDebt_2d6081a7033a4bad8e40f79d9d3b09bd" order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="loc_us-gaapDebtConversionConvertedInstrumentAmount1_a351fa2c442e464b96c24ae0c1c4a6d1"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapDebtConversionConvertedInstrumentAmount1_a351fa2c442e464b96c24ae0c1c4a6d1" order="4"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:label="loc_us-gaapDebtInstrumentConvertibleConversionPrice1_9adea58af2464a85a25ea141c13d2177"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapDebtInstrumentConvertibleConversionPrice1_9adea58af2464a85a25ea141c13d2177" order="5"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeFixedInterestRate" xlink:label="loc_us-gaapDerivativeFixedInterestRate_3f22b42006a345dabb6893a2a77ce01b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapDerivativeFixedInterestRate_3f22b42006a345dabb6893a2a77ce01b" order="6"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentConvertibleBeneficialConversionFeature" xlink:label="loc_us-gaapDebtInstrumentConvertibleBeneficialConversionFeature_c6b8e17f35614e3a9d2cdd1d03fd422f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapDebtInstrumentConvertibleBeneficialConversionFeature_c6b8e17f35614e3a9d2cdd1d03fd422f" order="7"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TradingSecuritiesDebtAmortizedCost" xlink:label="loc_us-gaapTradingSecuritiesDebtAmortizedCost_0c022a67141c4beaaab3b1b438c1b472"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapTradingSecuritiesDebtAmortizedCost_0c022a67141c4beaaab3b1b438c1b472" order="8"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConversionOfStockSharesIssued1" xlink:label="loc_us-gaapConversionOfStockSharesIssued1_48ea9413e7c6448b988e79346357a872"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_4414632bb03b40dab79f34e208b6932c" xlink:to="loc_us-gaapConversionOfStockSharesIssued1_48ea9413e7c6448b988e79346357a872" order="9"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/EquityDetailsNarrative" xlink:title="000020 - Disclosure - EQUITY (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaapEquityAbstract_9fd713e56d02437e8035608fec4f6333"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_d9c753a5409e4428a457fb9392279cd9"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityAbstract_9fd713e56d02437e8035608fec4f6333" xlink:to="loc_us-gaapStatementTable_d9c753a5409e4428a457fb9392279cd9" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_d9c753a5409e4428a457fb9392279cd9" xlink:to="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" order="2000"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_TitleOfIndividualAxis" xlink:label="loc_srtTitleOfIndividualAxis_4ee3c82bd86c4cd9b50577f9e2693eac"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_d9c753a5409e4428a457fb9392279cd9" xlink:to="loc_srtTitleOfIndividualAxis_4ee3c82bd86c4cd9b50577f9e2693eac" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_srtTitleOfIndividualWithRelationshipToEntityDomain_a0648ff1c32247d3957519d1d07c1c1b"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtTitleOfIndividualAxis_4ee3c82bd86c4cd9b50577f9e2693eac" xlink:to="loc_srtTitleOfIndividualWithRelationshipToEntityDomain_a0648ff1c32247d3957519d1d07c1c1b" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ChiefExecutiveOfficerMember" xlink:label="loc_srtChiefExecutiveOfficerMember_9aa6be4b7bc44ffd88ac69a82d0215e0"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtTitleOfIndividualWithRelationshipToEntityDomain_a0648ff1c32247d3957519d1d07c1c1b" xlink:to="loc_srtChiefExecutiveOfficerMember_9aa6be4b7bc44ffd88ac69a82d0215e0" order="21"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaapPreferredStockParOrStatedValuePerShare_216d1f37366f4ecc9570e07f3c66036f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapPreferredStockParOrStatedValuePerShare_216d1f37366f4ecc9570e07f3c66036f" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaapPreferredStockSharesAuthorized_f19a1b84dc774ab1b82474db7312ae7a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapPreferredStockSharesAuthorized_f19a1b84dc774ab1b82474db7312ae7a" order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaapPreferredStockSharesIssued_867f5eae39314e7097fcf68bf2e9af3e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapPreferredStockSharesIssued_867f5eae39314e7097fcf68bf2e9af3e" order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaapPreferredStockSharesOutstanding_d4b2bb23ecc0460b9fa1ce1682ed0970"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapPreferredStockSharesOutstanding_d4b2bb23ecc0460b9fa1ce1682ed0970" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaapCommonStockParOrStatedValuePerShare_91b199c403d34a9b92e20d8748808092"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapCommonStockParOrStatedValuePerShare_91b199c403d34a9b92e20d8748808092" order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaapCommonStockSharesAuthorized_86660e585ccc4c1b9aa5cce2a1c195ff"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapCommonStockSharesAuthorized_86660e585ccc4c1b9aa5cce2a1c195ff" order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaapCommonStockSharesIssued_7ec80a28b2054260a854ba4e9855a56d"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapCommonStockSharesIssued_7ec80a28b2054260a854ba4e9855a56d" order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaapCommonStockSharesOutstanding_47b04d8eaad0479daea26fe81f56c388"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapCommonStockSharesOutstanding_47b04d8eaad0479daea26fe81f56c388" order="8" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesShareBasedCompensation_9f534cf3983b42ffa27cf5cebb481609"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesShareBasedCompensation_9f534cf3983b42ffa27cf5cebb481609" order="9"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesConversionOfUnits_46d33b4f3ac1497a8be2795d1bb8360a"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesConversionOfUnits_46d33b4f3ac1497a8be2795d1bb8360a" order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConvertibleDebt" xlink:label="loc_us-gaapConvertibleDebt_7ba3e4de44774caa99d92ba1102dbf82"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_bf59eaf8db1a4d548cba20108c4fdbf5" xlink:to="loc_us-gaapConvertibleDebt_7ba3e4de44774caa99d92ba1102dbf82" order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/RelatedTransactionsDetailsNarrative" xlink:title="000021 - Disclosure - RELATED TRANSACTIONS (Details Narrative)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaapRelatedPartyTransactionsAbstract_930fdd647e114e4a8cc6df0661584ef4"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_ace0411f12f04ca78f824734cf08a93e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionsAbstract_930fdd647e114e4a8cc6df0661584ef4" xlink:to="loc_us-gaapStatementTable_ace0411f12f04ca78f824734cf08a93e" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_deb8c28ec4124949a1f795f9753691a0"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_ace0411f12f04ca78f824734cf08a93e" xlink:to="loc_us-gaapStatementLineItems_deb8c28ec4124949a1f795f9753691a0" order="2000"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaapRelatedPartyTransactionsByRelatedPartyAxis_a821843403484afe827f9d49692f8f53"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_ace0411f12f04ca78f824734cf08a93e" xlink:to="loc_us-gaapRelatedPartyTransactionsByRelatedPartyAxis_a821843403484afe827f9d49692f8f53" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaapRelatedPartyDomain_40515ae5ba2244a5a9ccf38d22dea5b3"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionsByRelatedPartyAxis_a821843403484afe827f9d49692f8f53" xlink:to="loc_us-gaapRelatedPartyDomain_40515ae5ba2244a5a9ccf38d22dea5b3" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_DirectorMember" xlink:label="loc_srtDirectorMember_adcc5039672448f7bdf2b5b97da20a1f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyDomain_40515ae5ba2244a5a9ccf38d22dea5b3" xlink:to="loc_srtDirectorMember_adcc5039672448f7bdf2b5b97da20a1f" order="21"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent" xlink:label="loc_us-gaapDueToRelatedPartiesCurrent_ccf0500f71094ec7b25713a1d64f5187"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_deb8c28ec4124949a1f795f9753691a0" xlink:to="loc_us-gaapDueToRelatedPartiesCurrent_ccf0500f71094ec7b25713a1d64f5187" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromRelatedPartyDebt" xlink:label="loc_us-gaapProceedsFromRelatedPartyDebt_7f1c3d449d064e9e8001603b9f1f03c2"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_deb8c28ec4124949a1f795f9753691a0" xlink:to="loc_us-gaapProceedsFromRelatedPartyDebt_7f1c3d449d064e9e8001603b9f1f03c2" order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfRelatedPartyDebt" xlink:label="loc_us-gaapRepaymentsOfRelatedPartyDebt_87b220fd66e541a397ba6e6675abe7f3"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_deb8c28ec4124949a1f795f9753691a0" xlink:to="loc_us-gaapRepaymentsOfRelatedPartyDebt_87b220fd66e541a397ba6e6675abe7f3" order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | </link:presentationLink> |
| <link:presentationLink xlink:type="extended" xlink:role="http://devv.com/role/DiscontinuedOperationsDetails" xlink:title="000022 - Disclosure - DISCONTINUED OPERATIONS (Details)"> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaapDiscontinuedOperationsAndDisposalGroupsAbstract_23021037b45d49d0baf3ef6f504f452e"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_e0280f9406b84a299b532d7f2d99adef"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDiscontinuedOperationsAndDisposalGroupsAbstract_23021037b45d49d0baf3ef6f504f452e" xlink:to="loc_us-gaapStatementTable_e0280f9406b84a299b532d7f2d99adef" order="100"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_e0280f9406b84a299b532d7f2d99adef" xlink:to="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" order="2000"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOperatingActivitiesSegmentAxis" xlink:label="loc_us-gaapStatementOperatingActivitiesSegmentAxis_eab0f1b7ce114e6ab4bafee1b856888f"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_e0280f9406b84a299b532d7f2d99adef" xlink:to="loc_us-gaapStatementOperatingActivitiesSegmentAxis_eab0f1b7ce114e6ab4bafee1b856888f" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentOperatingActivitiesDomain" xlink:label="loc_us-gaapSegmentOperatingActivitiesDomain_07d13e4ea86c4fdbb6840760977294c4"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOperatingActivitiesSegmentAxis_eab0f1b7ce114e6ab4bafee1b856888f" xlink:to="loc_us-gaapSegmentOperatingActivitiesDomain_07d13e4ea86c4fdbb6840760977294c4" order="20"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDiscontinuedOperationsMember" xlink:label="loc_us-gaapSegmentDiscontinuedOperationsMember_bddfedef49b0429e9dc86f247a0f736e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSegmentOperatingActivitiesDomain_07d13e4ea86c4fdbb6840760977294c4" xlink:to="loc_us-gaapSegmentDiscontinuedOperationsMember_bddfedef49b0429e9dc86f247a0f736e" order="21"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:label="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationRevenue_acca38b6a1a541249aeefbc6d2a4f509"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationRevenue_acca38b6a1a541249aeefbc6d2a4f509" order="1"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:label="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_1eb750da14554a07934d2c79a3c4c706"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_1eb750da14554a07934d2c79a3c4c706" order="2"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaapGrossProfit_50ea71bd573148a5b0b73eee9fab3697"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapGrossProfit_50ea71bd573148a5b0b73eee9fab3697" order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense" xlink:label="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_5a922a6a21f2423880ce52824c272a86"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_5a922a6a21f2423880ce52824c272a86" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="loc_us-gaapProfessionalFees_6ee0d14e6dbe4fce9ac6a1ef79a091f8"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapProfessionalFees_6ee0d14e6dbe4fce9ac6a1ef79a091f8" order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:label="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_99f917794e7d406097facf540c93db88"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapDisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_99f917794e7d406097facf540c93db88" order="6"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentIncomeTaxExpenseBenefit_eceeb68b22fe47c5bbfcffbcff17c60e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapCurrentIncomeTaxExpenseBenefit_eceeb68b22fe47c5bbfcffbcff17c60e" order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/> |
| | <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:label="loc_us-gaapDiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_a2255b06ed194a62ba9e6eccacf3741e"/> |
| | <link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_df91293d1fdb40599ee5081781ebcf94" xlink:to="loc_us-gaapDiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_a2255b06ed194a62ba9e6eccacf3741e" order="8"/> |
| | </link:presentationLink> |
| </link:linkbase> |