Abstract: A method and apparatus for managing a building model inventory, including a database structured for storing element specification and instance data from both a previous version and a latter revision of building information modeling datasets, respectively. In addition to the building information modeling element data, the database associates completed assembly pass, unit cost, work breakdown structure, and other inventory management data with the element type definitions and element instance data. Application software compares the first and second inventory revisions to identify all changes, additions and/or deletions of building elements between the previous version and the latter revision of the building information modeling datasets. By tracking the elements that change, the changes that affect the construction schedule and quantity, configuration and specification of materials are identified.

Abstract: A method and apparatus for managing a building model inventory, including a database structured for storing element specification and instance data from both a previous version and a latter revision of building information modeling datasets, respectively. In addition to the building information modeling element data, the database associates completed assembly pass, unit cost, work breakdown structure, and other inventory management data with the element type definitions and element instance data. Application software compares the first and second inventory revisions to identify all changes, additions and/or deletions of building elements between the previous version and the latter revision of the building information modeling datasets. By tracking the elements that change, the changes that affect the construction schedule and quantity, configuration and specification of materials are identified.