[xacml] issue with multiple decisions

If multiple decisions for a single Request are supported
(e.g. for a hierarchical resource), does XACML specify how the
decisions are reached?  For example, does XACML say the decisions
must be equivalent to those reached by making a separate Request
for each resource in the hierarchy?

If XACML does not say the previous, then don't we have to say how
Effects are combined by CombiningAlgorithms where there are
multiple effects and multiple resources being evaluated together?

Anne
-- 
Anne H. Anderson             Email: 
Sun Microsystems Laboratories
1 Network Drive,UBUR02-311     Tel: 781/442-0928
Burlington, MA 01803-0902 USA  Fax: 781/442-1692