OASIS eXtensible Access Control Markup Language (XACML) TC

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Re: [xacml] MK01: DataType and Namespace

  • 1.  Re: [xacml] MK01: DataType and Namespace

    Posted 10-23-2002 02:57
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    Subject: Re: [xacml] MK01: DataType and Namespace


    
    Hello,
    
    I found an inconsistent use of the "DataType" attribute.
    
    ----------------------------------------------------
    <Attribute DataType="xs:string"....>
    In this case, it seems to me that the attribute type is xs:QName.
    ----------------------------------------------------
    <Attribute DataType="urn:oasis:names:tc:xacml:1.0.datatype:x500name"...>
    In this case, it seems to me that the attribute type is xs:anyURI.
    ----------------------------------------------------
    
    As Kudo-san is requesting, I'd request to
    change the type from xs:anyURI to xs:QName.
    
    Satoshi Hada
    IBM Tokyo Research Laboratory
    mailto:satoshih@jp.ibm.com
    
    
                                                                                                                                       
                          Michiharu                                                                                                    
                          Kudoh/Japan/IBM@I        To:       XACML TC <xacml@lists.oasis-open.org>                                     
                          BMJP                     cc:                                                                                 
                                                   Subject:  [xacml] MK01: DataType and Namespace                                      
                          2002/10/17 18:47                                                                                             
                                                                                                                                       
                                                                                                                                       
    
    
    
    We have agreed to specify DataType attribute in both policy and context.
    The schema 16j says that DataType attribute is xs:anyURI. I think that the
    DataType is written as QName such as "xs:string" and "xs:boolean" like
    MatchId attribute. So I request to change DataType attribute from xs:anyURI
    to xs:QName. Besides, we should add the following namespace prefix and its
    namespace URI in the spec.
    
    Prefix            Namespace URI
    xacml-function    urn:oasis:names:tc:xacml:1.0:function
    xacml-datatype    urn:oasis:names:tc:xacml:1.0:datatype
    
    *) datatype prefix is used for xacml-datatype:x500Name and
    xacml-datatype:rfc822Name. In fact, prefix itself matters only in the
    specification document. Policy writers can choose another prefix as they
    like.
    
    I think text that refers to ds: prefix (XML Signature namespace) and saml:
    prefix no longer exist in the spec. So line 289-290, 303-305  should be
    deleted.
    
    Michiharu Kudo
    
    IBM Tokyo Research Laboratory, Internet Technology
    Tel. +81 (46) 215-4642   Fax +81 (46) 273-7428
    
    
    
    
    
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