buildingsmart data dictionary (ifd library, barbi/lexicon) by david watson, cet, fcsc, csp 2014-06
TRANSCRIPT
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BuildingSMART Data Dictionary(IFD Library, Barbi/Lexicon)
By David Watson, CET, FCSC, CSP
2014-06
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CAD-SpecsThe fundamental Problem
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Understanding the meaning of digital information
BEAM
CAD-SPECSTHE FUNDAMENTAL PROBLEM
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Understanding the meaning of digital informationThe DATA DICTIONARY is about the MEANING OF THINGS rather than the naming of things.
Earth relocating implement
I actually prefer to be called
Steve
Spade Shovel
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objective
General
• Submit drawings
• 5 yr warranty
Products
• Porcelain• Floor
mounted, tank type
Execution• Install after
flooringWater Closets, wall hung, tankless
Specification View
BIM View
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bSDD – How does it work?
• CAD (BIM) Model– bSDD GUID = xyz– Name = “ceiling panel”– Length =– Width =– Thickness =– Geometric position (x, y, z)– Quantity
• Data Source (eg. master specification)– bSDD GUID = xyz– Name = “acoustic panel”– STC Rating =– Flame spread resistance = – Install into suspended t-bar– Submit shop drawing
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In a briefing document
Properties
In product catalogues
Properties
In classification systems
Properties
In building specifications
Properties
In a calculation system
Properties
In a Facility management system
Properties
In IFC
Properties
In a CAD system
Properties
buildingSMART Data Dictionary
Properties
bSDD / IFD mapping mechanism
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Fire resistance integrity Fire rating?? = ??
How it Works
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How it works
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DATA DICTIONARY
3F2504E0-4F89....3F25
04E
0-4F
89...
.
How it works
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BSDD – What else does it do?• Accessible via software/internet (cloud)• Manages synonyms, multiple languages• Classifies
– Any classification, as long as it resides in bSDD
• Gets specialization hierarchy – Super-types, sub-types
• Get lists of components• Get lists of properties• Get lists of relevant standards• Select from many ‘contexts’
– (a context is a set of relations)
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BSDD - Applications• No. 1: Access BIM Data Stores
– Spec database– Product information– Costing– …
• Translate• Classify
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The Buildingsmart model
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The BuildingSMART Model• IFC:
– The ‘transport’ medium through which data is transmitted
• IFD: – The ‘meaning’ of the data being transmitted
• IDM: – The ‘process’ (which part is being sent, what is it, who sent it to whom, and when)
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bSDD - Status• API operational• Pilot Projects:
– Approximately 15 participants (at least 10 countries)– N.A./Europe: Weekly– N.A./Australasia: Weekly– Subjects: Ceiling tile, VAV Terminal box– Developing content management guidelines
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BSDD Status• Customers:
– CB/NL: Dutch, available to all Dutch users– Cobuilder: NO company, storing product data– IFD Sign-on (NOBB, ???)
• Serious Interest– Saint Gobain– NBS/RIBA and bsUK (UK)– AIMCC (France)– University of Austria