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Subject: Property Identifiers
Hi Folks, Issues/questions have been raised about whether we should assign identifiers to properties (assigned_property). Right now, the capabilities don't do this, nor do the AP203 or PDM usage guides. However, PLCS assigns identifiers to most other significant instances. My view (as a systems integrator / implementor) is that assigning identifiers will cause problems. Each property is uniquely identified by its AND the item it is assigned to. I can think of no commercial engineering data systems that identify properties (though, now I've said that someone is bound to contradict me). Hence, it does not seem sensible to mandate identifiers when there will be no source or target data that corresponds to them in the data exchange. Regards -- Ian Bailey Eurostep Limited - www.eurostep.com t&f: +44 (0) 20 7378 1894 m: +44 (0) 7768 892362
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