Explain Building Information Modeling (BIM) and identify one major benefit.

• A. A digital representation of building data; improves coordination and clash detection across disciplines.
• B. A physical model used for client presentations.
• C. A process for on-site construction sequencing.
• D. A standard for cost estimation.

Answer: (C)

BIM is a digital representation of building data that captures geometry, spatial relationships, quantities, and other information needed for design, construction, and facility management. It goes beyond a static 3D model by enabling intelligent objects that carry data and can be shared across disciplines, from architecture to structural and MEP engineering, as well as contractors.

One major benefit is improved coordination across disciplines and clash detection. Because all team members work from a common, integrated model, conflicts between systems—such as piping interfering with a structural member or ductwork colliding with other equipment—are identified early. This reduces rework, change orders, and costly delays during construction. BIM also supports scheduling (4D) and cost estimation (5D) and provides a centralized source of information for facilities management.

Other options describe different tools or processes outside BIM: a physical model is a traditional, non-digital presentation aid; on-site sequencing is project management, not BIM; and a standard for cost estimation is a separate concept, though BIM can inform it.