BIM Model Uses: Choosing the Purpose

Information only — not legal advice.

A BIM model use is a defined activity supported by model information. Naming the use helps a team decide what to produce, how to check it and whether the effort has value. “Create a model” describes an output; “check maintenance access before equipment selection” describes a useful task.

Choose uses that support actual project or operational decisions, and connect each one to a responsible user.

Common uses need different inputs

• Design review: suitable views, alternatives and information that help reviewers understand the proposal.
• Coordination: compatible locations, identified model revisions and agreed rules for interfaces and clearances.
• Quantity support: a defined element scope, measurement rules, classifications and treatment of omissions or duplicates.
• Sequencing: a maintained link between model objects and programme activities, including temporary works where required.
• Performance analysis: an analytical representation and assumptions suitable for the discipline, not simply visible geometry.
• Asset handover: verified installed information linked to the operator's records and documents.

The same authoring model may support several uses, but each exchange needs its own fitness check. A model suitable for visual review may be incomplete for quantity measurement.

Write a short use specification

Record the purpose, decision-maker, required inputs, producer, review method, output, timing and acceptance criteria. Identify assumptions and exclusions. Agree how information will reach the receiving tool and test a representative exchange early.

If nobody can name the recipient or decision, reconsider whether the use belongs in the project scope.

Example: quantity extraction for finishes

A fictional cost team wants floor-finish quantities for an early estimate. It agrees which spaces are included, the measurement basis, units, treatment of openings and whether finishes are represented by spaces or separate elements.

The team compares several extracted quantities with independent measurements, checks for duplicate elements and lists areas outside the model scope. The result includes its model revision and assumptions.

The quantity file is an input to the estimate. Rates, waste allowances, procurement packages, temporary works and other costs may need separate treatment. Calling the extraction “5D BIM” would not resolve those scope questions.

Measure a result you can attribute

For a coordination use, track significant issues resolved before issue and the effort required—not only the number of clashes found. For handover, test whether the operator can retrieve required information and import the agreed dataset. For sequencing, check whether the model helps identify a real programme conflict.

Keep a baseline where possible and record other changes that affect the result. A shorter project after introducing BIM does not, by itself, prove BIM caused the improvement.

Start small and review

Pilot one high-value use with representative information. Record failed exchanges, missing fields and review effort, then adjust the requirements and delivery method. Add further uses when the team can support them reliably.

The NIBS Project BIM Execution Planning Standard provides a reference for planning BIM execution. This article's use specification and quantity example are suggested working methods. Record agreed uses in the BIM Execution Plan and connect them to level of information need.

Important information

This article provides general information and does not constitute legal advice or replace a qualified professional's assessment of your circumstances. Laws, official guidance, standards and product features can change. Check current primary sources and the requirements applicable to your jurisdiction, contract and project before making decisions. Examples illustrate the discussion; they are not official rulings or instructions for a particular case. For legal decisions, consult a qualified lawyer; for technical or other specialist matters, consult the responsible professional.