為因應企業流程的改變及企業夥伴間的頻繁互動,企業各類應用系統必須有效的溝通或整合。網路服務(Web Services)技術實現了彈性的服務導向架構,在此架構下的應用程式被封裝成標準的服務元件,並透過開放式的標準相互溝通,而企業也可組合不同功能之服務元件成為新的系統。但是目前並無一套完整的方法以輔助企業選擇合適的服務元件,包含分析企業流程並以此找尋符合流程需求的服務元件。 本研究利用服務導向分析與設計的概念,提出網路服務組合之規劃模型,此模型包含服務的規格分析和服務選擇兩階段。在分析階段,我們使用UN/CEFACT Modeling Methodology以及三層式規格以定義服務元件的規格,在選擇階段,我們導入語意服務比對和服務品質項目之評選方法以篩選出符合規格定義的服務元件。
To support frequent changes of businesses, organizations must effectively integrate their application systems. Web Services technology facilitates the integration problem since it provides interoperability across platforms and languages. Organizations can use composite services achieving business demands. However, a method to specify services which can meet business demand has not been proposed. This paper utilizes the concept of “Service Oriented Analysis and Design” to provide a service composition-plan-model. It comprises a service specification analysis phase and a service selection phase. In service specification analysis phase, we use UN/CEFACT Modeling Methodology and Specification method to specify business process services. In service selection phase, we introduce semantic matching method and quality of services method to filter web services.