[Bug 5023] Relationship between identity constraints and assertions

http://www.w3.org/Bugs/Public/show_bug.cgi?id=5023





--- Comment #7 from Sandy Gao <sandygao@ca.ibm.com>  2009-04-13 16:12:17 ---
One minor comment on the proposal in comment #5.

The insertion at the beginning of 2.2.4 starts with

"XSD has three forms of constraint which allow convenient expression of certain
rules which would be inconvenient, or impossible, to express otherwise."

But we have other rules that are "inconvenient, or impossible, to express
otherwise". For example, how to specify open contents or fixed value
constraints?

I think what these 3 have in common is that they all use XPaths and they are
all about relationship between different parts of a document. Convenience and
feasibility aren't unique to them.


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Received on Monday, 13 April 2009 16:12:26 UTC