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Re: [ontolog-forum] Thing and Class

To: "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: "Deborah MacPherson" <debmacp@xxxxxxxxx>
Date: Fri, 5 Sep 2008 14:09:08 -0400
Message-id: <48f213f30809051109u984fcd5od32ca44359222339@xxxxxxxxxxxxxx>

RE:  IEEE standards project P1175.4 is currently working on a
developing a standardized set of concepts for linking assembly and part
structures to system behaviors.  If you might have an interest in
working to refine those concepts into practical ontologies / data
structures for describing all these kinds of interrelationships, the
goal of upcoming project P1175.5, please let me know.

I have an interest in working to refine the concepts into practical data structures for building systems and components. Currently, parts like an HVAC unit within a system can be classified and described fairly consistently. Efforts are underway to develop standardized property sets especially for federal building projects, see attached. 

The current shortcoming is assemblies. For example Underwriters Laboratory tested, approved design for through-penetration firestop systems is XHEZ. If the contractor varies from this assembly in any fashion, the whole thing needs to be retested. But Building Information Models still seem only able to describe the parts - gypsum board of this thickness in these layers, certain studs sizes etc - we need a way to describe assemblies better. And capture how to dynamic structured queries on the fly over the internet. There is currently nothing to capture this with. 

RE: Is this granular enough?  Is the parts lifecycle linked explicitly to the assembly or does it exist on it's own (UML aggregation vs composition).
Also needed - now the design information needs to adapt and service the entire building lifecycle, most parts will be replaced sooner or later. Only the WHOLE building will remain. 

Deborah MacPherson

Deborah L. MacPherson CSI CCS, AIA
Projects Director, Accuracy&Aesthetics
Specifier, WDG Architecture PLLC


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