<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!--
  This file is part of the Dutch Taxonomy (Nederlandse Taxonomie; NT)
  Intellectual Property of the State of the Netherlands
  Architecture: NT16
  Version: 20220216.a
  Release date: April 29, 2021
-->
<xs:schema xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nl-types="http://www.nltaxonomie.nl/nt16/sbr/20210301/dictionary/nl-types" xmlns:ocw-ohu-i="http://www.nltaxonomie.nl/nt16/ocw/20220216.a/dictionary/ocw-ohu-data" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xs="http://www.w3.org/2001/XMLSchema" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.nltaxonomie.nl/nt16/ocw/20220216.a/dictionary/ocw-ohu-data">
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ocw-ohu-data-commentaryguidance-lab-nl.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ocw-ohu-data-documentation-lab-en.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ocw-ohu-data-documentation-lab-nl.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ocw-ohu-data-lab-en.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ocw-ohu-data-lab-nl.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ocw-ohu-data-terse-lab-en.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ocw-ohu-data-terse-lab-nl.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
    </xs:appinfo>
  </xs:annotation>
  <xs:import namespace="http://www.nltaxonomie.nl/nt16/sbr/20210301/dictionary/nl-types" schemaLocation="../../../sbr/20210301/dictionary/nl-types.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:element abstract="false" id="ocw-ohu-i_Hiring" name="Hiring" nillable="false" substitutionGroup="xbrli:item" type="nl-types:monetaryNoDecimals20ItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xs:element abstract="false" id="ocw-ohu-i_Outsourcing" name="Outsourcing" nillable="false" substitutionGroup="xbrli:item" type="nl-types:monetaryNoDecimals20ItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xs:element abstract="false" id="ocw-ohu-i_PersonelOnPayrollAmount" name="PersonelOnPayrollAmount" nillable="false" substitutionGroup="xbrli:item" type="nl-types:monetaryNoDecimals20ItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xs:element abstract="false" id="ocw-ohu-i_PersonelOnPayrollInFTE" name="PersonelOnPayrollInFTE" nillable="false" substitutionGroup="xbrli:item" type="nl-types:nonNegativeDecimal20ItemType" xbrli:periodType="duration"/>
</xs:schema>
