基于过程模型的服务组合方法

服务发现和组合是面向服务计算的两个关键问题。本文提出了改进的服务发现和组合方法,利用STRIPS图发现可用服务,利用有限状态自动机匹配行为模型,能够根据用户需求和基于过程模型确定服务子集,构造组合服务,并给出合理的操作执行序列。此方法可以减少服务组合中不能给出服务组合方案和给出错误的组合方案两类错误,提高服务组合的成功率。

A Process-Model-Based Service Composition Method

Service discovery and composition are two crucial issues in service-oriented computing(SOC).We propose a new improved process-model-based approach that accounts for the needs of discovering and composing several services to satisfy a client query,and gives a rational invocation order.This approach can reduce two kinds of errors in service composition and raise the success probability.