OASIS eXtensible Access Control Markup Language (XACML) TC

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CD-1 issue #15: ancestor attributes of XML nodes

  • 1.  CD-1 issue #15: ancestor attributes of XML nodes

    Posted 09-11-2009 13:13
    The issue number refers to the XLS-sheet found in this email:
    http://lists.oasis-open.org/archives/xacml/200909/msg00013.html
    
    The commenter says that the ancestor attributes in the XML case are not 
    needed since the hierarchy information is already there in the XML document.
    
    The attributes are intended to be used with the xpath match functions to 
    grant access to sections of an XML document. It is probably true that 
    these attributes are redundant since it is probably possible to achieve 
    the same effect using xpath expressions which match sections of the XML 
    document.
    
    However, I have not done a careful analysis of whether this is really 
    true, or which approach is more efficient. Also, it would be good to 
    keep the attributes for compatibility with XACML 2.0.
    
    So I propose that we make no change.
    
    Best regards,
    Erik