Table 1

Rule classification by complexity according to Solihin and Eastman

Rule classDescriptionExamples/Characteristics
Class 1Checks based on explicit dataChecking of explicit attributes and entity references that exist inside the BIM dataset, e.g. Fire doors must be at least fire-retardant
Class 2Checks based on simple derived attribute values by arithmetic or trigonometric calculationsDeriving attributes or values but does not generate new data structures, e.g. Distance between two doors in a series must be 1,219 mm minimum. Doors in a series must swing either in the same direction or away from the space between the doors
Class 3Checks based on extended data structureInvolve multiple entities or extended relationships, such as spatial reasoning or geometric derivation, e.g. Exit staircase which serves a basement story of a building shall not be made continuous with any other exit staircase which serves a non-basement story of the building
Class 4Proof-of-solution checksFor checking performance based codes and suggestions of corrective actions or solutions, e. g. automatic safety checking due to crane simulation based on construction model and schedule
Source(s): Authors’ own work

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