Information about UBL code lists

At the F2F I briefly described the UBL TC's design for "code lists", 
which have some similar properties to our attribute (and action) 
namespaces.  We didn't consider SAML's precise current solution (simple 
name string + namespace URI) nor XACML's (one-part URI reference), but 
we did analyze a number of other solutions.  I've attached a few slides 
that introduce the UBL solution (datatyped string with canonical 
metadata attributes, where the datatype is the interface between code 
list producers and consumers), and if anyone is interested I can also 
forward a long analysis document we did last year.

	Eve
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Eve Maler                                        +1 781 442 3190
Sun Microsystems                            cell +1 781 354 9441
Web Products, Technologies, and Standards    eve.maler @ sun.com