[DFDL-WG] DFDL & support for XML Schema 1.1

[Steve Hanson]

Sandy Gao at IBM has looked at the reasons for moving to schema 1.1 and 
concluded that DFDL should move.

Grounds:
- Weakened wildcard support - there is less ambiguity in 1.1 because an 
optional element x followed by a wildcard will match x, instead of giving 
a UPA error - this will enable DFDL to model more formats
- Relaxation of <xs:all> means that it is suitable for DFDL use - this 
will allow us to drop the dfdl:unordered property
- In Schema 1.0, annotations are lost on particles, but they are needed by 
DFDL. Schema 1.1 captures all annotations.

Regards

Steve Hanson
Programming Model Architect
WebSphere Message Brokers
Hursley, UK
Internet: smh at uk.ibm.com
Phone (+44)/(0) 1962-815848






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