Checking a building model against building regulations by software: rules written in a form a computer can test, run against model data, with a report a reviewer still reads.
Automated code checking is the use of software to test a building model against the rules of building regulations, such as escape distances, door widths, accessible routes or fire compartment sizes. The software reads the model's objects and properties, applies rules written in a form a computer can evaluate, and reports where the design passes, fails or cannot be checked. It supports a plan reviewer or a designer; it does not replace their judgement.
Design teams use rule-based checkers for their own quality checks before a submission: accessible door clearances, stair dimensions, room areas against a brief. Several countries and cities have run e-permitting programmes in which an authority checks submitted IFC models for selected rules, with mixed results: the checks work best where rules are measurable and the model follows a published modelling guide.
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