关键词: 服务虚拟化, 具体化, 语义, 需求变化性

Abstract: To enable users to access heterogeneous Web services transparently in problem solving environments based on virtual organization mechanisms, a service virtualization mechanism supporting the variability of business requirements was proposed. A virtual service model was proposed based on the description model of business requirements variability, which could support various requirements. Operations for virtualization and concretion were also defined base on the proposed approaches to service matching, transformation, etc. The analysis and experiments show the proposed mechanism can improve the efficiency for handling services.

Key words: service virtualization, concretion, semantic, requirement variability