<?xml version=“1.0” encoding=“UTF-8”?> <xsd:schema xmlns=“schemas.openxmlformats.org/package/2006/digital-signature

xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://schemas.openxmlformats.org/package/2006/digital-signature"
elementFormDefault="qualified" attributeFormDefault="unqualified" blockDefault="#all">
<xsd:element name="SignatureTime" type="CT_SignatureTime"/>
<xsd:element name="RelationshipReference" type="CT_RelationshipReference"/>
<xsd:element name="RelationshipsGroupReference" type="CT_RelationshipsGroupReference"/>
<xsd:complexType name="CT_SignatureTime">
  <xsd:sequence>
    <xsd:element name="Format" type="ST_Format"/>
    <xsd:element name="Value" type="ST_Value"/>
  </xsd:sequence>
</xsd:complexType>
<xsd:complexType name="CT_RelationshipReference">
  <xsd:simpleContent>
    <xsd:extension base="xsd:string">
      <xsd:attribute name="SourceId" type="xsd:string" use="required"/>
    </xsd:extension>
  </xsd:simpleContent>
</xsd:complexType>
<xsd:complexType name="CT_RelationshipsGroupReference">
  <xsd:simpleContent>
    <xsd:extension base="xsd:string">
      <xsd:attribute name="SourceType" type="xsd:anyURI" use="required"/>
    </xsd:extension>
  </xsd:simpleContent>
</xsd:complexType>
<xsd:simpleType name="ST_Format">
  <xsd:restriction base="xsd:string">
    <xsd:pattern
      value="(YYYY)|(YYYY-MM)|(YYYY-MM-DD)|(YYYY-MM-DDThh:mmTZD)|(YYYY-MM-DDThh:mm:ssTZD)|(YYYY-MM-DDThh:mm:ss.sTZD)"
    />
  </xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="ST_Value">
  <xsd:restriction base="xsd:string">
    <xsd:pattern
      value="(([0-9][0-9][0-9][0-9]))|(([0-9][0-9][0-9][0-9])-((0[1-9])|(1(0|1|2))))|(([0-9][0-9][0-9][0-9])-((0[1-9])|(1(0|1|2)))-((0[1-9])|(1[0-9])|(2[0-9])|(3(0|1))))|(([0-9][0-9][0-9][0-9])-((0[1-9])|(1(0|1|2)))-((0[1-9])|(1[0-9])|(2[0-9])|(3(0|1)))T((0[0-9])|(1[0-9])|(2(0|1|2|3))):((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9]))(((\+|-)((0[0-9])|(1[0-9])|(2(0|1|2|3))):((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9])))|Z))|(([0-9][0-9][0-9][0-9])-((0[1-9])|(1(0|1|2)))-((0[1-9])|(1[0-9])|(2[0-9])|(3(0|1)))T((0[0-9])|(1[0-9])|(2(0|1|2|3))):((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9])):((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9]))(((\+|-)((0[0-9])|(1[0-9])|(2(0|1|2|3))):((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9])))|Z))|(([0-9][0-9][0-9][0-9])-((0[1-9])|(1(0|1|2)))-((0[1-9])|(1[0-9])|(2[0-9])|(3(0|1)))T((0[0-9])|(1[0-9])|(2(0|1|2|3))):((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9])):(((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9]))\.[0-9])(((\+|-)((0[0-9])|(1[0-9])|(2(0|1|2|3))):((0[0-9])|(1[0-9])|(2[0-9])|(3[0-9])|(4[0-9])|(5[0-9])))|Z))"
    />
  </xsd:restriction>
</xsd:simpleType>

</xsd:schema>