>I don't think capability exchange is the whole story.
>>Required baseline support is what guarantees interoperability. (As TIFF-S
>for Internet fax.)
>>Capability exchange allows systems to use better capabilities when both
>parties can support them.
Exactly, and IPP currently has capability exchange but lacks any baseline
requirement. This is one area that QualDocs should extend the IPP
specification.
Cheers,
Nick Webb