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Uniclass / OmniClass / MasterFormat

Code System Construction

Delivered by NBS, Uniclass is a classification system used across the construction industry. Learn more about Uniclass and how it can benefit you....

NBS / CSI / Construction Specifications Canada, from their own og:description

Other construction data models

BCF (BIM Collaboration Format) Exchange Schema bSDD (buildingSMART Data Dictionary) Code System COBie (Construction Operations Building Information Exchange) Exchange Schema IDS (Information Delivery Specification) Information Model IFC (Industry Foundation Classes) Information Model ISO 12006 building construction classification framework Metadata Model
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Model Details
Steward NBS / CSI / Construction Specifications Canada
Layer Code System
Domain Construction
Status live
Access Not yet established
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How I know this

Compiled for the API Evangelist data model catalog, then confirmed against the steward's own site.

Confirmed 2026-08-11

Evidence: steward evidence 3/4. Found something wrong? Tell me — corrections are cheap and I would rather be right.

Modernity Profile
Access Not established
Assessed 35.0% of the rubric

Not enough of this standard was readable to place it in a band. That is a limit of what I could see, not a finding against the standard.

A separate measure from the Kin Score, which rates API providers. This rates how current a standard is in how it is expressed, published and paid for — not how good it is. EDIFACT and X12 score low here and move an enormous share of world trade.

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