I'd ask myself the question: am I developing an XML vocabulary to store
(or exchange) "per-item" inventory data, or an XML vocabulary to report
summary ("number of...") inventory data, or a mix of both (for example,
reports - or data exchanges - that might include both summary and per-item
information)? I would suggest that the design of a "per-item" vocabulary
might be in some sense distinct from the design of a "summary" vocabulary
(although, again: a report - as an XML document - that includes summary
data might also include per-item information).
Graham Hannington
Perth, Western Australia
Fundi Software Pty Ltd 2012 ABN 89 009 120 290
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