A large commercial building project generates a BIM model with thousands of components, spatial relationships, material specifications, and maintenance schedules. This model costs hundreds of thousands of dollars to create and maintain through construction. Then the building is handed over to the owner, and the BIM model goes into a folder that nobody opens again.
Why the handoff fails
The BIM model is an authoring tool for designers and contractors. It is not an operations tool. Facility managers do not need to know the parametric relationships between wall assemblies. They need to know which HVAC unit serves which floor and when it was last serviced.
The digital twin promise
The industry talks about digital twins as the bridge between construction and operations. The concept is sound: a living model that reflects the current state of the building and updates as things change. But most digital twin implementations are visualization layers on top of static BIM data - impressive demos that do not connect to maintenance workflows.
What owners actually need
Building owners need three things from construction data: an asset registry (what is in this building and where), a maintenance schedule (what needs attention and when), and a warranty tracker (what is covered and by whom). These are database problems, not 3D modeling problems.
Open BIM and interoperability
The IFC standard (Industry Foundation Classes) enables BIM data export in a vendor-neutral format. But IFC files are enormous, complex, and designed for geometric representation, not operational queries. The translation from IFC to an operational database requires domain-specific mapping that understands which BIM properties matter for facility management and which are construction artifacts.
The practical path forward
Start from the operations side, not the BIM side. Define what the facility management team needs to know. Then build an extraction pipeline that pulls only the relevant data from the BIM model into an operational database. This is a focused integration project, not a digital twin moonshot.