Quiz: Construction: IFC, Uniclass, COBie and BOT

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Question 1 of 3

1. Question

What does the lesson say about IFC 4.3 and its ISO status?

It was published as ISO 12006-2:2024 and is the first edition to include a classification hierarchy
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It remains a buildingSMART-only specification, since IFC has never been taken through ISO
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It was approved as a final international standard in January 2024 and published as ISO 16739-1:2024, and is the first edition to properly cover rail, road, bridge, port and waterway domains
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IFC 4.3 was skipped in favour of IFC5, which was published as ISO 16739-1:2024 with early implementations shown from 2025
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Question 2 of 3

2. Question

What is the standards status of the Building Topology Ontology, BOT, and what does the lesson say you get in exchange?

It is a W3C Recommendation, which is why it can be relied on contractually in place of IFC
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It is an ISO standard published alongside ISO 16739-1, which gives it the same authority as IFC
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It is a buildingSMART deliverable, so it inherits IFC's governance and its EXPRESS shape
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It is a W3C Community Group report rather than a Recommendation, so it carries community consensus rather than standards-track authority, and in exchange you get a minimal OWL DL ontology you can actually reason over
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Question 3 of 3

3. Question

What is COBie technically, and what happened to the UK standard that defined its usage?

A classification system maintained by NBS and compliant with ISO 12006-2, still current under BS 1192-4
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A model view definition of IFC, that is, a filtered non-geometric projection of the same schema; UK usage was defined by BS 1192-4:2014, which was withdrawn in 2022 and superseded by BS EN ISO 19650-4:2022
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An OWL ontology of handover data developed by the W3C Linked Building Data Community Group and superseded by BOT
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A spreadsheet format independent of IFC, whose UK definition moved from ISO 19650-4 back to BS 1192-4 in 2022
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Quiz: Construction: IFC, Uniclass, COBie and BOT

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