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MUDDI (Model for Underground Data Definition and Integration)

Information Model Built Environment emerging openly published

This standard defines classes that support the integration of datasets from different types of information about the underground space, using different...

Open Geospatial Consortium, from their own og:description

Other built environment data models

ASHRAE 223P Semantic Data Model Ontology / Vocabulary BACnet object model Information Model Brick Schema Ontology / Vocabulary CityGML Information Model CityJSON Exchange Schema DALI (Digital Addressable Lighting Interface) Information Model gbXML (Green Building XML) Exchange Schema IndoorGML Information Model Project Haystack Ontology / Vocabulary
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Model Details
Steward Open Geospatial Consortium
Origin International United States
Layer Information Model
Domain Built Environment
Status emerging
Access Openly published
Go to the steward →
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: name evidence 4/4. Found something wrong? Tell me — corrections are cheap and I would rather be right.

Modernity Profile
Access Open
Assessed 51.0% 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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