<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created by RR Donnelley IM Processor 7.0.0.0 using Fujitsu Interstage XWand-->
<schema targetNamespace="http://www.dws-investments.com/20130128" elementFormDefault="qualified" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:dit1="http://www.dws-investments.com/20130128" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric">
  <annotation>
    <appinfo>
      <link:linkbaseRef xlink:type="simple" xlink:href="dit1-20130128_pre.xml" xlink:title="Presentation Links, all" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="dit1-20130128_cal.xml" xlink:title="Calculation Links, all" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="dit1-20130128_def.xml" xlink:title="Definition Links, all" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="dit1-20130128_lab.xml" xlink:title="Label Links, all" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentDocumentandEntityInformation" id="DocumentDocumentandEntityInformation">
        <link:definition>000000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnSummaryUnlabeledDWSCapitalGrowthFund" id="DocumentRiskReturnSummaryUnlabeledDWSCapitalGrowthFund">
        <link:definition>000011 - Document - Risk/Return Summary {Unlabeled} - DWS Capital Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleShareholderFeesDWSCapitalGrowthFund" id="ScheduleShareholderFeesDWSCapitalGrowthFund">
        <link:definition>000012 - Schedule - Shareholder Fees {- DWS Capital Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualFundOperatingExpensesDWSCapitalGrowthFund" id="ScheduleAnnualFundOperatingExpensesDWSCapitalGrowthFund">
        <link:definition>000013 - Schedule - Annual Fund Operating Expenses {- DWS Capital Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleDWSCapitalGrowthFund" id="ScheduleExpenseExampleDWSCapitalGrowthFund">
        <link:definition>000014 - Schedule - Expense Example {- DWS Capital Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleNoRedemptionDWSCapitalGrowthFund" id="ScheduleExpenseExampleNoRedemptionDWSCapitalGrowthFund">
        <link:definition>000015 - Schedule - Expense Example, No Redemption {- DWS Capital Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualTotalReturnsDWSCapitalGrowthFundBarChart" id="ScheduleAnnualTotalReturnsDWSCapitalGrowthFundBarChart">
        <link:definition>000016 - Schedule - Annual Total Returns - DWS Capital Growth Fund [BarChart]</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAverageAnnualTotalReturnsTransposedDWSCapitalGrowthFund" id="ScheduleAverageAnnualTotalReturnsTransposedDWSCapitalGrowthFund">
        <link:definition>000017 - Schedule - Average Annual Total Returns {Transposed} {- DWS Capital Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnDetailUnlabeledDWSCapitalGrowthFund" id="DocumentRiskReturnDetailUnlabeledDWSCapitalGrowthFund">
        <link:definition>000018 - Document - Risk/Return Detail {Unlabeled} - DWS Capital Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DisclosureRiskReturnDetailDataElementsDWSCapitalGrowthFund" id="DisclosureRiskReturnDetailDataElementsDWSCapitalGrowthFund">
        <link:definition>000019 - Disclosure - Risk/Return Detail Data {Elements} - DWS Capital Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnSummaryUnlabeledDWSCoreEquityFund" id="DocumentRiskReturnSummaryUnlabeledDWSCoreEquityFund">
        <link:definition>000021 - Document - Risk/Return Summary {Unlabeled} - DWS Core Equity Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleShareholderFeesDWSCoreEquityFund" id="ScheduleShareholderFeesDWSCoreEquityFund">
        <link:definition>000022 - Schedule - Shareholder Fees {- DWS Core Equity Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualFundOperatingExpensesDWSCoreEquityFund" id="ScheduleAnnualFundOperatingExpensesDWSCoreEquityFund">
        <link:definition>000023 - Schedule - Annual Fund Operating Expenses {- DWS Core Equity Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleDWSCoreEquityFund" id="ScheduleExpenseExampleDWSCoreEquityFund">
        <link:definition>000024 - Schedule - Expense Example {- DWS Core Equity Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleNoRedemptionDWSCoreEquityFund" id="ScheduleExpenseExampleNoRedemptionDWSCoreEquityFund">
        <link:definition>000025 - Schedule - Expense Example, No Redemption {- DWS Core Equity Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualTotalReturnsDWSCoreEquityFundBarChart" id="ScheduleAnnualTotalReturnsDWSCoreEquityFundBarChart">
        <link:definition>000026 - Schedule - Annual Total Returns - DWS Core Equity Fund [BarChart]</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAverageAnnualTotalReturnsTransposedDWSCoreEquityFund" id="ScheduleAverageAnnualTotalReturnsTransposedDWSCoreEquityFund">
        <link:definition>000027 - Schedule - Average Annual Total Returns {Transposed} {- DWS Core Equity Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnDetailUnlabeledDWSCoreEquityFund" id="DocumentRiskReturnDetailUnlabeledDWSCoreEquityFund">
        <link:definition>000028 - Document - Risk/Return Detail {Unlabeled} - DWS Core Equity Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DisclosureRiskReturnDetailDataElementsDWSCoreEquityFund" id="DisclosureRiskReturnDetailDataElementsDWSCoreEquityFund">
        <link:definition>000029 - Disclosure - Risk/Return Detail Data {Elements} - DWS Core Equity Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnSummaryUnlabeledDWSMidCapGrowthFund" id="DocumentRiskReturnSummaryUnlabeledDWSMidCapGrowthFund">
        <link:definition>000031 - Document - Risk/Return Summary {Unlabeled} - DWS Mid Cap Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleShareholderFeesDWSMidCapGrowthFund" id="ScheduleShareholderFeesDWSMidCapGrowthFund">
        <link:definition>000032 - Schedule - Shareholder Fees {- DWS Mid Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualFundOperatingExpensesDWSMidCapGrowthFund" id="ScheduleAnnualFundOperatingExpensesDWSMidCapGrowthFund">
        <link:definition>000033 - Schedule - Annual Fund Operating Expenses {- DWS Mid Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleDWSMidCapGrowthFund" id="ScheduleExpenseExampleDWSMidCapGrowthFund">
        <link:definition>000034 - Schedule - Expense Example {- DWS Mid Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleNoRedemptionDWSMidCapGrowthFund" id="ScheduleExpenseExampleNoRedemptionDWSMidCapGrowthFund">
        <link:definition>000035 - Schedule - Expense Example, No Redemption {- DWS Mid Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualTotalReturnsDWSMidCapGrowthFundBarChart" id="ScheduleAnnualTotalReturnsDWSMidCapGrowthFundBarChart">
        <link:definition>000036 - Schedule - Annual Total Returns - DWS Mid Cap Growth Fund [BarChart]</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAverageAnnualTotalReturnsTransposedDWSMidCapGrowthFund" id="ScheduleAverageAnnualTotalReturnsTransposedDWSMidCapGrowthFund">
        <link:definition>000037 - Schedule - Average Annual Total Returns {Transposed} {- DWS Mid Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnDetailUnlabeledDWSMidCapGrowthFund" id="DocumentRiskReturnDetailUnlabeledDWSMidCapGrowthFund">
        <link:definition>000038 - Document - Risk/Return Detail {Unlabeled} - DWS Mid Cap Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DisclosureRiskReturnDetailDataElementsDWSMidCapGrowthFund" id="DisclosureRiskReturnDetailDataElementsDWSMidCapGrowthFund">
        <link:definition>000039 - Disclosure - Risk/Return Detail Data {Elements} - DWS Mid Cap Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnSummaryUnlabeledDWSSmallCapCoreFund" id="DocumentRiskReturnSummaryUnlabeledDWSSmallCapCoreFund">
        <link:definition>000041 - Document - Risk/Return Summary {Unlabeled} - DWS Small Cap Core Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleShareholderFeesDWSSmallCapCoreFund" id="ScheduleShareholderFeesDWSSmallCapCoreFund">
        <link:definition>000042 - Schedule - Shareholder Fees {- DWS Small Cap Core Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualFundOperatingExpensesDWSSmallCapCoreFund" id="ScheduleAnnualFundOperatingExpensesDWSSmallCapCoreFund">
        <link:definition>000043 - Schedule - Annual Fund Operating Expenses {- DWS Small Cap Core Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleDWSSmallCapCoreFund" id="ScheduleExpenseExampleDWSSmallCapCoreFund">
        <link:definition>000044 - Schedule - Expense Example {- DWS Small Cap Core Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleNoRedemptionDWSSmallCapCoreFund" id="ScheduleExpenseExampleNoRedemptionDWSSmallCapCoreFund">
        <link:definition>000045 - Schedule - Expense Example, No Redemption {- DWS Small Cap Core Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualTotalReturnsDWSSmallCapCoreFundBarChart" id="ScheduleAnnualTotalReturnsDWSSmallCapCoreFundBarChart">
        <link:definition>000046 - Schedule - Annual Total Returns - DWS Small Cap Core Fund [BarChart]</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAverageAnnualTotalReturnsTransposedDWSSmallCapCoreFund" id="ScheduleAverageAnnualTotalReturnsTransposedDWSSmallCapCoreFund">
        <link:definition>000047 - Schedule - Average Annual Total Returns {Transposed} {- DWS Small Cap Core Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnDetailUnlabeledDWSSmallCapCoreFund" id="DocumentRiskReturnDetailUnlabeledDWSSmallCapCoreFund">
        <link:definition>000048 - Document - Risk/Return Detail {Unlabeled} - DWS Small Cap Core Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DisclosureRiskReturnDetailDataElementsDWSSmallCapCoreFund" id="DisclosureRiskReturnDetailDataElementsDWSSmallCapCoreFund">
        <link:definition>000049 - Disclosure - Risk/Return Detail Data {Elements} - DWS Small Cap Core Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnSummaryUnlabeledDWSSmallCapGrowthFund" id="DocumentRiskReturnSummaryUnlabeledDWSSmallCapGrowthFund">
        <link:definition>000051 - Document - Risk/Return Summary {Unlabeled} - DWS Small Cap Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleShareholderFeesDWSSmallCapGrowthFund" id="ScheduleShareholderFeesDWSSmallCapGrowthFund">
        <link:definition>000052 - Schedule - Shareholder Fees {- DWS Small Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualFundOperatingExpensesDWSSmallCapGrowthFund" id="ScheduleAnnualFundOperatingExpensesDWSSmallCapGrowthFund">
        <link:definition>000053 - Schedule - Annual Fund Operating Expenses {- DWS Small Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleDWSSmallCapGrowthFund" id="ScheduleExpenseExampleDWSSmallCapGrowthFund">
        <link:definition>000054 - Schedule - Expense Example {- DWS Small Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleExpenseExampleNoRedemptionDWSSmallCapGrowthFund" id="ScheduleExpenseExampleNoRedemptionDWSSmallCapGrowthFund">
        <link:definition>000055 - Schedule - Expense Example, No Redemption {- DWS Small Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAnnualTotalReturnsDWSSmallCapGrowthFundBarChart" id="ScheduleAnnualTotalReturnsDWSSmallCapGrowthFundBarChart">
        <link:definition>000056 - Schedule - Annual Total Returns - DWS Small Cap Growth Fund [BarChart]</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAverageAnnualTotalReturnsTransposedDWSSmallCapGrowthFundSupplement" id="ScheduleAverageAnnualTotalReturnsTransposedDWSSmallCapGrowthFundSupplement">
        <link:definition>000057 - Schedule - Average Annual Total Returns {Transposed} {- DWS Small Cap Growth Fund Supplement}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/ScheduleAverageAnnualTotalReturnsTransposedDWSSmallCapGrowthFund" id="ScheduleAverageAnnualTotalReturnsTransposedDWSSmallCapGrowthFund">
        <link:definition>000057 - Schedule - Average Annual Total Returns {Transposed} {- DWS Small Cap Growth Fund}</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DocumentRiskReturnDetailUnlabeledDWSSmallCapGrowthFund" id="DocumentRiskReturnDetailUnlabeledDWSSmallCapGrowthFund">
        <link:definition>000058 - Document - Risk/Return Detail {Unlabeled} - DWS Small Cap Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.dws-investments.com/role/DisclosureRiskReturnDetailDataElementsDWSSmallCapGrowthFund" id="DisclosureRiskReturnDetailDataElementsDWSSmallCapGrowthFund">
        <link:definition>000059 - Disclosure - Risk/Return Detail Data {Elements} - DWS Small Cap Growth Fund</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://xbrl.sec.gov/dei/2012-01-31" schemaLocation="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd" />
  <import namespace="http://xbrl.sec.gov/rr/2012-01-31" schemaLocation="http://xbrl.sec.gov/rr/2012/rr-2012-01-31.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <element name="S000005705Member" id="dit1_S000005705Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015670Member" id="dit1_C000015670Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015671Member" id="dit1_C000015671Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015672Member" id="dit1_C000015672Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015673Member" id="dit1_C000015673Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015674Member" id="dit1_C000015674Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015676Member" id="dit1_C000015676Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015675Member" id="dit1_C000015675Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="BeforeTaxMember" id="dit1_BeforeTaxMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="RussellThousandGrowthIndexMember" id="dit1_RussellThousandGrowthIndexMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="S000005706Member" id="dit1_S000005706Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015677Member" id="dit1_C000015677Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015678Member" id="dit1_C000015678Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015679Member" id="dit1_C000015679Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015680Member" id="dit1_C000015680Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015681Member" id="dit1_C000015681Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015682Member" id="dit1_C000015682Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015683Member" id="dit1_C000015683Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="RussellThousandIndexMember" id="dit1_RussellThousandIndexMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="S000031149Member" id="dit1_S000031149Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096639Member" id="dit1_C000096639Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096640Member" id="dit1_C000096640Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096641Member" id="dit1_C000096641Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096643Member" id="dit1_C000096643Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096642Member" id="dit1_C000096642Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="RussellMidcapGrowthIndexMember" id="dit1_RussellMidcapGrowthIndexMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="S000005709Member" id="dit1_S000005709Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015696Member" id="dit1_C000015696Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015697Member" id="dit1_C000015697Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015698Member" id="dit1_C000015698Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015699Member" id="dit1_C000015699Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000015700Member" id="dit1_C000015700Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="RussellTwoThousandIndexMember" id="dit1_RussellTwoThousandIndexMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="S000031150Member" id="dit1_S000031150Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096645Member" id="dit1_C000096645Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096646Member" id="dit1_C000096646Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096647Member" id="dit1_C000096647Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000113854Member" id="dit1_C000113854Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096648Member" id="dit1_C000096648Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="C000096644Member" id="dit1_C000096644Member" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="RussellTwoThousandGrowthIndexMember" id="dit1_RussellTwoThousandGrowthIndexMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
</schema>
