Building Information Modeling (BIM)

Building Information Modeling (BIM) is the logical capability of representing a built asset — building, plant, infrastructure, ship — as a coordinated digital model that combines 3D geometry with semantic object data (rooms, walls, equipment, systems) and lifecycle metadata. BIM is the AEC counterpart to mechanical PLM: it spans concept, design, construction, commissioning, and operations, with handover packages feeding facility management and maintenance systems.

What it covers

• 3D coordinated model across architecture, structure, MEP, and equipment disciplines.
• Semantic object data — properties, classifications, manufacturer data attached to geometry.
• Levels of Development (LOD 100-500) describing how detailed and reliable model elements are.
• Clash detection and 4D/5D — schedule and cost overlays on the model.
• Digital handover — IFC export to facility management and digital-twin platforms.

Relationships (see sidebar)

• Supports Concept Design, Detailed Design, and Service and Maintenance.
• Conforms to IFC (ISO 16739) — the open data exchange schema for BIM.
• Adjacent to plant-design and shipbuilding lifecycle disciplines that share the same IFC and ISO 15926 lineages.