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LAST CALL COMMENT 1/31/2005: Clarify Role References

From: Monica J. Martin <Monica.Martin@Sun.COM>
Date: Mon, 31 Jan 2005 08:33:32 -0800
To: "WS Choreography (E-mail)" <public-ws-chor@w3.org>, public-ws-chor-comments@w3.org
Message-id: <41FE5DDC.6000004@sun.com>

Clarify which role ref/refs is/are valid in XML schema in Section 12 and 
ensure consistency with Section 2.3.1 and other possible affected 
sections. In XML schema in Section 12, there are three tRoleRefxxx based 
on how they are used:

    * tRoleRef: tRelationshipType
    * tRoleRef2: tParticipantType
    * tRoleRef3: tChannelType

This could create some confusion with developer community where the role 
(reference) capabilities change given where used. If they are all valid, 
suggest we have clarifying text to state what they are and why we have 
defined them as they are.  This may also relate to the question about 
how we have chosen to name (and scope) RoleType.

  </complexType>
  <complexType name="tRelationshipType">
    <complexContent>
      <extension base="cdl:tExtensibleElements">
        <sequence>
          <element name="role" type="cdl:tRoleRef" minOccurs="2"
                  maxOccurs="2"/>
        </sequence>
        <attribute name="name" type="NCName" use="required"/>
      </extension>
    </complexContent>
  </complexType>
  <complexType name="tRoleRef">
    <complexContent>
      <extension base="cdl:tExtensibleElements">
        <attribute name="type" type="QName" use="required"/>
        <attribute name="behavior" use="optional">
          <simpleType>
             <list itemType="NCName"/>
          </simpleType>
        </attribute>
      </extension>
    </complexContent>
  </complexType>
  <complexType name="tParticipantType">
    <complexContent>
      <extension base="cdl:tExtensibleElements">
        <sequence>
          <element name="role" type="cdl:tRoleRef2" 
                  maxOccurs="unbounded"/>
        </sequence>
        <attribute name="name" type="NCName" use="required"/>
      </extension>
    </complexContent>
  </complexType>
  <complexType name="tRoleRef2">
    <complexContent>
      <extension base="cdl:tExtensibleElements">
        <attribute name="type" type="QName" use="required"/>
      </extension>
    </complexContent>
  </complexType>
  <complexType name="tChannelType">
    <complexContent>
      <extension base="cdl:tExtensibleElements">
        <sequence>
          <element name="passing" type="cdl:tPassing" minOccurs="0"
                  maxOccurs="unbounded"/>
          <element name="role" type="cdl:tRoleRef3"/>
          <element name="reference" type="cdl:tReference"/>
          <element name="identity" type="cdl:tIdentity" minOccurs="0" 
                  maxOccurs="1"/>
        </sequence>
        <attribute name="name" type="NCName" use="required"/>
        <attribute name="usage" type="cdl:tUsage" use="optional" 
                     default="unlimited"/>
        <attribute name="action" type="cdl:tAction" use="optional"
                     default="request"/>
      </extension>
    </complexContent>
  </complexType>
  <complexType name="tRoleRef3">
    <complexContent>
      <extension base="cdl:tExtensibleElements">
        <attribute name="type" type="QName" use="required"/>
        <attribute name="behavior" type="NCName" use="optional"/>
      </extension>
    </complexContent>
  </complexType>

Thanks.
Received on Monday, 31 January 2005 16:33:31 GMT

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