Rationales for namespace name changes

[MURATA Makoto (FAMILY Given)]

One of my action items in the proposed minutes is:

> Action: Murata-san will write the rationale for consideration by WG4 on the next call.

Rationale for Part 1

This amendment changes the namespace names in ISO/IEC 29500-1:2008.
As a result, OOXML documents in the conformance class "strict" are easily 
distuinguishable from Ecma-376 (1st edition) OOXML documents.

Rationale for Part 4 

This amendment allows OOXML documents in the conformance class "transitional" 
to continue to use the original namespaces in ISO/IEC 29500-1:2008
rather than the new namespaces in ISO/IEC 29500-1:2008/AM-1.  As a
result, Ecma-376 (1st edition) OOXML documents conforming to 
ISO/IEC 29500-4:2008 continue to conform to ISO/IEC 29500-4:2008/AM1.

Cheers,
Makoto