Sample schema for rightsMetadata (not authoritative)

rightsMetadata.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="http://hydra-collab.stanford.edu/schemas/rightsMetadata/v1" xmlns:v1="http://hydra-collab.stanford.edu/schemas/rightsMetadata/v1">
  <xs:element name="rightsMetadata">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="v1:copyright"/>
        <xs:element maxOccurs="unbounded" ref="v1:access"/>
        <xs:element ref="v1:use"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="copyright">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="v1:human"/>
        <xs:element ref="v1:machine"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="access">
    <xs:complexType>
      <xs:sequence minOccurs="0">
        <xs:element ref="v1:human"/>
        <xs:element ref="v1:machine"/>
      </xs:sequence>
      <xs:attribute name="type" use="required" type="xs:NCName"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="use">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="v1:human"/>
        <xs:element ref="v1:machine"/>
      </xs:sequence>
    </xs:complexType>
  </xs:element>
  <xs:element name="human">
    <xs:complexType mixed="true">
      <xs:attribute name="type" type="xs:NCName"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="machine">
    <xs:complexType mixed="true">
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="v1:a"/>
        <xs:element ref="v1:br"/>
        <xs:element ref="v1:group"/>
        <xs:element ref="v1:person"/>
        <xs:element ref="v1:policy"/>
        <xs:element ref="v1:span"/>
      </xs:choice>
    </xs:complexType>
  </xs:element>
  <xs:element name="a">
    <xs:complexType mixed="true">
      <xs:sequence>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="v1:img"/>
      </xs:sequence>
      <xs:attribute name="href" use="required" type="xs:anyURI"/>
      <xs:attribute name="rel" use="required" type="xs:NCName"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="img">
    <xs:complexType>
      <xs:attribute name="alt" use="required"/>
      <xs:attribute name="src" use="required" type="xs:anyURI"/>
      <xs:attribute name="style" use="required" type="xs:NMTOKEN"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="br">
    <xs:complexType/>
  </xs:element>
  <xs:element name="group" type="xs:NCName"/>
  <xs:element name="person" type="xs:NCName"/>
  <xs:element name="policy" type="xs:NMTOKEN"/>
  <xs:element name="span">
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:NCName">
          <xs:attribute name="href" use="required" type="xs:anyURI"/>
          <xs:attribute name="rel" use="required" type="xs:NMTOKEN"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>
</xs:schema>