UsageType

Simple Type Information

Used By

Attribute CommonObjectPropertyAttributes/@usage

Source 

<xs:simpleType name="UsageType">
  <xs:restriction base="adsml:ShortTokenType">
    <xs:enumeration value="Required"/>
    <xs:enumeration value="Optional"/>
    <xs:enumeration value="Encouraged"/>
  </xs:restriction>
</xs:simpleType>