||As clients' requests are becoming more diverse and extensive than ever, it isnecessary to concentrate compony whole efforts and to fortify cooperation amongdifferent divisions in the A/E/C industry. In the past development of informationsystems, was basic focused on increasing efficency of particular domain tasks, andwas not enough to respond current problems. Therefore, a new method of developingcollaborative and integrated informaton systems is required to synthesize resources inorder to achieve total efficiency. However, it is difficult to generate, share and maintainproject data during the various phases of the A/E/C project life cycle from planning todesign, construction and management of the facility. The project data needs to bestored, retrieved, manipulated, and updated by many project participants, each withhis/her own view of the information. In order to realize the model description ofan A/E/Cproject, such a project model should support both product-based descriptionand process-based description. Therefore the author has been proposed an object-oriented project model (called PMAPM) supporting the multiple views that are requiredby various participants in A/E/C pojects, which is very important for integration of theA/E/C industry.The scope of this research is to establish an object-oriented project model supportingmultiple views shared by various A/E/C project participants and provide several typeof sub-product model for by computer-based systems using multiple views. Theobjective is the eventual development of an integrated system which includes activitiesfrom project planning through design, estimation, construction and facilitymanagement. The object-oriented project model is intended to link CAD systems,relational databases, knowledge-based expert systems and other conventional software.This paper describes the development, present status and future directions forPMAPM, an object-oriented project model designed to facilitate infonnation sharingalong the paths through which workflows between project stages or specialists.