assertion classes

Hi,

I tried to assemble a few characteristics of different classes of 
assertions in the attached paper. This represents a very simplistic 
view, but I hope it can help to untangle some tarballs and gain more 
clarity in the discussions on optionality, advisory, and local policies 
and assertions.

Fabian

-- 
Fabian Ritzmann
Sun Microsystems, Inc.
Stella Business Park             Phone +358-9-525 562 96
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Finland