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>