What Is Model-Based Review?

A model-based review checks a design directly against a BIM model's live geometry and structured data, rather than against a flattened 2D export of that model. Because a BIM model carries structured information, element types, parameters, relationships, that a printed or exported drawing loses, a model-based review can query and check that underlying data directly.

This matters because it allows for a different kind of precision than drawing-based review. A model-based clash check, for instance, can identify the exact element IDs involved in a conflict, at the exact level, rather than only a general area on a printed sheet. Structured AI's Revit Add-In performs model-based review directly inside Revit, running QA/QC, code compliance, and custom checks against the live model without requiring an export step first.

Model-based review doesn't replace the need for drawing-set-level review, since most projects still produce 2D construction documents for permitting and field use even when the underlying design work happens in a coordinated model. The two approaches are complementary: model-based review catches issues earlier, during design development, while drawing-set review confirms the final, submittal-ready documents are clean before they go out.

FAQ

Is this term used consistently across the industry, or does it vary by firm or region? Most of these terms are used fairly consistently across the industry, though exact usage can vary slightly by firm, region, or project delivery method. When in doubt, project-specific contract documents typically define exactly how a term is being used on that project.

How does this connect to AI-assisted drawing review? Structured AI's QA/QC Compliance Checks, Document Chat, and Overlay features are built to catch the kinds of issues and inconsistencies that show up in exactly this part of the design and construction process, with findings tied to the exact page and location involved.

Where can I learn more about related terms? See the related topics below for connected concepts that often come up alongside this one.