摘要
该文提出基于过程定义的Web服务集成模型,给出Web服务在服务群中相对服务质量的计算方法,为Web服务的集成过程提供选择依据。最后把Web服务集成抽象为多段图问题,给出采用动态规划的求解策略。
Web services have been regarded as an effective approach to integrate distributed,heterogeneous,and au-tonomous applications.Integration of large-scale Web Services concerns complex processes.Usually,several component ser-vices are able to execute a given task,although with different levels of pricing and quality.Accordingly,this paper pro-poses a quality-based Web Service composition model.The key step—service selection,is formulated as a multi-sect problem,which can be solved through efficient dynamic programming methods.
出处
《计算机工程与应用》
CSCD
北大核心
2005年第6期158-160,166,共4页
Computer Engineering and Applications
