The Model Element is graphically represented within the Model as a specific system, object, or assembly in terms of quantity, size, shape, location, orientation, and interfaces with other building systems. The project origin is defined and the element is located accurately with respect to the project origin.Īll objects are accurately modeled and to final dimension along with coordinated disciplines. The quantity, size, shape, location, and orientation of the element as designed can be measured directly from the model without referring to non-modeled information such as notes or dimension call-outs. Non-graphic information may also be attached to the Model Element. The Model Element is graphically represented within the Model as a specific system, object or assembly in terms of quantity, size, shape, location, and orientation.

SD to DD plans, elevations, and sections with approximate locations and counts of all components for a project. Any information derived from LOD 200 elements must be considered approximate. They may be recognizable as the components they represent, or they may be volumes for space reservation. Non-graphic information may also be attached to the Model Element.Īt this LOD elements are generic placeholders. The Model Element is graphically represented within the Model as a generic system, object, or assembly with approximate quantities, size, shape, location, and orientation. Ideally, something that easily interfaces with a BIM software.

This can be anything from a simple had sketch on a napkin to roughed out massing models. Any information derived from LOD 100 elements must be considered approximate. Examples are information attached to other model elements or symbols showing the existence of a component but not its shape, size, or precise location. LOD 100 elements are not geometric representations. cost per square foot, tonnage of HVAC, etc.) can be derived from other Model Elements. Information related to the Model Element (i.e. The Model Element may be graphically represented in the Model with a symbol or other generic representation, but does not satisfy the requirements for LOD 200. While I could make my own definitions its best to reference the authoritative BIM Forum directly. Since then, there is an added sixth level, LOD 350, sandwiched between LOD 300 & 400. While the concept existed before then, this was the first time it was formalized in the context of BIM. LOD was introduced by the American Institute of Architects (AIA) in 2008, which defined five development levels for a BIM model. Level of Design/Detail/Development (LOD) assists the AEC industry with articulating a BIM project status through levels of refinement and specifications to clearly communicate and eliminate confusion for faster coordination.

Revit bim model level of detail