Questions on 1.1 schema

[William Cox <wtcox@CoxSoftwareArchitects.com>]

Preliminary work in my UML tools raised a couple of questions, the first one of which should be checked in the pending schema upload.

1. All classes that have a value have associated both facets and objAttrs, EXCEPT for complex type "real" which does not have a facet - only objAttr. It would seem that it should have both.
2. There is no obvious inheritance in the schema (can address in review), just a single class (effectively ObixObject) with a lot of associated classes; the associated classes do not inherit from obj as in Figure 1 WD12.
3. There is no optionality in the schema; all items appear to be cardinality 1.. except for the ObixObjects (not the actual name) that are in lists.
   
4. The schema does not appear to correspond directly to Figure 1 in WD12 (just posted by Craig - see PDF line 473, section 4 Object Model, and the drawings that Chris and the rest of us have circulated/discussed 

Thanks!

bill

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William Cox
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