Comments on Draft 01 of the XACML profile for Web-services

Colleagues - I received the following comments on the 01 draft of the XACML
profile for Web-services from Seth.  Seth's points are valid and I propose
to address them by imposing the following limitations (at least for v1.0):

1.	Only the functions and data-types defined by XACML 1.0 are permitted
in a WSPL instance, and
2.	Only simple predicates are permitted.  That is, a predicate must be
of the form:

     <Apply>
       <AD/AS>
       <AV>
     </Apply>