基于领域本体的Web服务动态组合

Dynamic Composition of Web Services Based on Domain Ontology

随着Web环境下服务数量的快速增长，如何自动地根据服务请求,进行服务的动态组合成为一个迫切需要解决的问题.该文提出了一种基于领域本体的服务动态组合方法,该方法利用领域本体及其推理能力,生成一个优化的服务组合图,然后基于该图给出了一个高效的服务组合算法.与已有的方法相比,该文的方法综合考虑了服务语义、服务组合的质量和服务组合的效率等因素,可以自动地根据服务请求实现服务的动态组合,同时保证了服务组合的效率和质量.

With the growing number of Web services, it is necessary to compose existing Web services dynamically according to service request. This paper proposes a dynamic Web service composition method based on domain ontology. The method builds an optimized graph for service composition based on domain ontology and its reasoning capability, and then an efficient algorithm based on the graph is presented to accomplish service composition. Compared with existing methods, the method considers the semantics of services together with quality and efficiency of the composition. So the method can ensure quality and efficiency while composing services automatically according to service request.