一个基于WS-CDL的服务编排行为模型及角色映射  

Model of Behavior Model of Service Choreography Protocol and Role Mapping Based on WSCDL

作　　者：尤殿龙[1,2] 申利民[1,2] 王辉[1,2] 耿大伟[1,2] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004 [2]河北省计算机虚拟技术与系统集成重点实验室,河北秦皇岛066004

出　　处：《小型微型计算机系统》2014年第7期1561-1566,共6页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61272125;61300193)资助;教育部高等学校博士学科点专项科研基金项目(20121333110014)资助;河北省自然科学基金项目(F2011203234)资助;河北省高等学校科学技术研究重点项目(ZH2011115)资助;河北省科技支撑计划项目(11213562)资助

摘　　要：Web服务组合的服务编制过程需要遵守服务编排协议.针对将服务编排协议映射到分散式服务编制这一难点问题,提出了面向角色的WS-CDL映射模型,建立了服务编排协议的行为模型;给出了服务编排协议的行为模型的角色映射规则及实现算法.该模型符合分散式服务编制由各个成员服务独立处理交换信息的特点,通过引入角色映射这一中间环节,解决了因WS-CDL和BPEL在语法上不具有一一对应关系而无法完全直接转换的问题.最后,给出了面向角色的服务编排协议映射的实例分析过程,并通过开发的原型系统,验证了映射规则的正确性和算法的可实现性.The process of service orchestration in web service composition needs to comply with the service choreography protocol. In response to the problem of defining the mapping of service choreography protocol to decentralized services orchestration,a role-oriented WS-CDL mapping model is proposed,a behavior model of service choreography protocol is established,and their role mapping rules and algorithms are given as well. The model conforms to the characteristic that decentralized service orchestration is in the independent processing of exchanging information by each member service. With the medium of role mapping,the problem is solved in that WS-CDL and BPEL cannot be completely direct-converted for they don＇t have one to one correspondent relationship on grammar.Finally,a case study of analyzing the role-oriented mapping model of service choreography protocol is given and a protosystem is implemented in order to validate the correctness of the mapping rules and the reliability of the algorithm.

关 键 词：WEB服务组合 服务编排协议 行为模型 WS-CDL 角色映射 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]