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Repository to collect updates to the IFC4.3 Specification
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Difference between Purpose, IntendedUse and Scope at IfcDocumentInformation #344

Open Moult opened 2 years ago

Moult commented 2 years ago

https://forums.buildingsmart.org/t/difference-between-purpose-intendeduse-and-scope-at-ifcdocumentinformation/895

Hi all,

the documentation of IfcDocumentInformation has definitions for these attributes:

Purpose: Purpose for this document IntendedUse: Intended use for this document Scope: Scope for this document

What is the difference between these three attributes?

Moult commented 2 years ago

So I recently implemented drawing sheets as IfcDocumentInformation. This, coupled with an attempt in FM to link document management systems (iTwo, Oracle Aconex, BIM360 Docs) with IfcDocumentInformation made me rethink what I previously found confusing, but now I find quite useful in IFC.

IFC has Purpose, IntendedUse, and Scope. I found these confusing in the past. My new interpretation is:

Purpose - to distinguish between things like drawings, specifications, contracts, manuals, etc. IntendedUse - "For information", "For construction", "For tender" Scope - you know how drawing packages are grouped? Like General arrangement drawings, zone drawings, overalls, details, etc? This would be it.

(depending on the language, Purpose or Scope could be swapped around)

Moult commented 2 years ago

Note to check out other standards like ISO19650 and whether these can correlate.

Moult commented 2 years ago

From the assembly meeting chat log:

karin anderson To Everyone 8:47:25 PM KA I Think there is an ISO standard for this Lawrence Chapman To Everyone 8:53:19 PM LC Uniclass form of information https://buildig.com/uniclass-2015/uniclass2015/Uniclass2015_FI.csv Status Codes https://www.manandmachine.co.uk/understanding-status-codes-bs-en-iso-19650-2-national-annex-a/