Use of empty policy for nesting should be exemplified

Title: Use of empty policy for nesting should be exemplified 

Description: This is related to an existing issue 4142. Currently the
utility
of empty assertions and compatibility is unclear. When the semantics is
clarified, the effect of using nesting should be exemplified for Primer
and
Guidelines documents. 

Justification: Nesting is used in Security Policy and it will be used by
other
domain specifications. Thus, the effect of empty policies with respect
to
authoring nested assertions should be clarified. 

Proposal: TBD, depends on the resolution of Issue [4142]

Two bugs are filed for Primer [4213]  and Guidelines [4212]

[4142] http://www.w3.org/Bugs/Public/show_bug.cgi?id=4142

[4212] http://www.w3.org/Bugs/Public/show_bug.cgi?id=4212

[4213] http://www.w3.org/Bugs/Public/show_bug.cgi?id=4213

----------------------

Dr. Umit Yalcinalp
Research Scientist
SAP Labs, LLC
Email: umit.yalcinalp@sap.com Tel: (650) 320-3095 
SDN: https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/u/36238
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"Nearly all men can stand adversity, but if you want to test a man's
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