Knowledge · Multi-platform

COBie (Construction Operations Building Information Exchange)

COBie data standard for facility management handover: structured spreadsheet format linking BIM data to operations.

Definition & Context

COBie (Construction Operations Building Information Exchange) is an open, spreadsheet-based schema for delivering non-graphic asset data — spaces, equipment, systems, warranties, spares, and maintenance information — from design and construction into facilities management.

COBie is a subset of IFC and is exported directly from Revit, ArchiCAD, and other BIM tools. Data is captured progressively across project stages so that at handover the owner receives a structured, populated asset register instead of boxes of PDFs.

Why It Matters

COBie turns the BIM model into usable operational data, saving owners the cost of re-surveying assets and enabling CMMS/CAFM systems to be populated automatically at handover.

The catch is data discipline across the whole project: COBie is only as good as the parameters entered during design and construction, so responsibility for populating each field (who, at which stage) should be assigned in the BEP rather than scrambled together at handover. Because it is a defined IFC subset, COBie can be exported and validated automatically — but a model full of unnamed spaces and untyped equipment produces an empty spreadsheet no matter how good the geometry is.

Best Practices

Capture COBie data progressively at each stage rather than in a rush at handover.
Agree required parameters and classification (e.g. Uniclass/OmniClass) early in the EIR.
Validate the COBie export against a checker before submission.
Map model parameters to COBie fields consistently across disciplines.

Common Pitfalls

Leaving all data entry to the end of the project.
Exporting incomplete or mis-mapped parameters that fail validation.
Delivering COBie no one can import into the owner's FM system.
Ignoring classification codes required by the client.

Standard Engineering Workflow for COBie (Construction Operations Building Information Exchange)

2. Geometric Alignment & Profile Design

Lay out horizontal tangents and spiral transitions following AASHTO / Eurocode minimum curve radii, coupled with vertical slope crest/sag parabolic curves.

Common Failure Scenarios & Troubleshooting

Failure / Geometric Issue	Root Cause & Mitigation Strategy
Surface triangulation bridges across steep ravines incorrectly	Add linear Breaklines along tops/toes of slopes or specify 'Maximum Triangle Length' under Surface Build Properties.
Horizontal curve radius triggers AASHTO violation flags	Adjust minimum transition spiral length or increase curve radius to meet minimum design speed superelevation criteria.
Coordinates offset by several meters after CAD/GIS import	Verify projection datum and false easting/northing parameters in MAPCSASSIGN before importing geospatial shapefiles.