IFC-based data model for integrated maintenance management

This paper presents an object model for maintenance management of roofing systems as a case study to demonstrate the applicability of a proposed generic framework for integrating the maintenance management of built-assets. The model builds upon the Industry Foundation Classes (IFCs) (Releases 2.0 and 2.x) to define object requirements and relationships for the exchange and sharing of maintenance information between applications. Maintenance Management is one of the defined projects within the Facilities Management (FM) domain committee of the International Alliance of Interoperability (IAI). The paper proposes several extensions to the IFC's including the representation of functional requirements, assessed conditions of objects, inspection and maintenance tasks, and libraries of non-project specific information. Usage scenarios are provided to illustrate the use of the model to carry out selected processes.