文献类型：会议论文

英文题名：An Approach to Analyzing Dynamic Trustworthy Service Composition

作者：Fan, Guisheng[1,2];Yu, Huiqun[1,2];Ghen, Liqiong[3];Liu, Dongmei[1]

机构：[1]East China Univ Sci & Technol, Dept Comp Sci & Engn, Shanghai 200237, Peoples R China;[2]Shanghai Key Lab Comp Software, Evaluating & Testing, Shanghai 201112, Peoples R China;[3]Shanghai Inst Technol, Dept Comp Sci & Informat Engn, Shanghai 200235, Peoples R China

会议论文集：4th Asian Semantic Web Conference

会议日期：DEC 06-09, 2009

会议地点：Shanghai, PEOPLES R CHINA

语种：英文

外文关键词：Quality of service - Network security

摘要：Service composition and related technologies have provided favorable means for building complex Web software systems. It may span multiple organizational units requires particular considerations on trustworthy issues. However, the distributive and heterogeneous characteristics of services make it hard to guarantee trustworthiness of service composition. This paper presents a method for analyzing dynamic trustworthy service composition according to the characteristics and requirements of service composition. Petri nets are used to precisely describe the composition process in order to describe the logic relation between different components. Based on this, the concept of trust matrix is given to represent the relationships between states. A trustworthy service composition strategy and its enforcement method are proposed. A case study of Travel Service demonstrates the feasibility of proposed method.