关键词: 虚拟企业, 供应链, Petri网模型, CORBA, 角色

Abstract: A Petri-net workflow model for supply chain managements in virtual enterprises is introduced. The model is based on roles that are responsible for a certain set of activities. In the concept level, the model is easier to present partners' dynamic behaviors in processes of realizing the business goals. And in the implementing level, the model is easier for objects to“plug and play” on the distributed object-oriented architecture.The prototype system is based on the platform of CORBA, Web / Intranet. The objects can interoperate across the computer systems, invoke the corresponding PSA, share information and execute the enterprises’ activities. The whole process can be executed in the order predefined in the model and browsed on the Web.

Key words: virtual enterprise, supply chain, Petri net model, CORBA