关键词: 业务服务, 信任度, 服务选择, 业务生态系统, 模糊规划

Abstract: Subjective trust relationship among enterprises always plays a key role in the process of business services selection, besides, geographical location and waiting time could influence selection results of business service. To deal with this circumstance and to select business service more appropriately, service-oriented business ecological system was formally defined and a trust-based business services selection method was proposed. A fuzzy chance constraint goal programming model was established by taking Qos properties, locations, trust relationship and waiting time into consideration. According to the characteristics of the fuzzy constraints, a converted equation was established to convert fuzzy constraints into crisp equivalents, and the equivalent crisp model was solved by genetic algorithm. Four groups experiments were designed to demonstrate feasibility and effectiveness of the proposed method.

Key words: business services, trust, services selection, business ecosystem, fuzzy programming, genetic algorithms