Articles

What Are LOD and LOIN in BIM, and What Are They For?

What is it: This BibLus article  offers a clear, structured explanation of two foundational BIM concepts—Level of Development (LOD) and Level of Information Need (LOIN). While LOD establishes the geometry and data richness of a BIM element at a particular stage, LOIN ensures that data exchanges are meaningful, efficient, and tailored to specific project tasks or decisions. The article aligns LOD with the U.S. BIM Forum and expands on LOIN’s origin in ISO 19650.

In the context of Building Lifecycle Management (BLM), these frameworks support a structured, scalable, and standards-based approach to digital asset definition, data transfer, and stakeholder collaboration. Implementing LOD and LOIN principles helps bridge the gap between early-stage design intent and long-term operational performance—foundational to BLM’s focus on lifecycle efficiency, regulatory readiness, and data transparency.

Stakeholder Audience: Architecture, Engineering & Construction (AEC), Facility Operations, Building Owners, IT/Technology-Cybersecurity, Technology Providers-Integrators, Service Providers-Consultants, Trade-Professional-Standards Bodies

Inform or Action: Informational

#BLMI #IFMA #Autodesk #BIM #LOD #LOIN #ISO19650 #DigitalConstruction #BuildingInformationModeling