本文介紹了一個(gè)基于工作流的web 服務(wù)組合系統(tǒng)，這個(gè)系統(tǒng)為說明組合服務(wù)的流模
型和用戶對組合服務(wù)約束提供了環(huán)境。在web 服務(wù)資源分配的約束下進(jìn)行工作流建模和進(jìn)度安排，并擴(kuò)展它使其具有發(fā)現(xiàn)服務(wù)的功能。在組合服務(wù)建模中，系統(tǒng)引導(dǎo)用戶選擇相關(guān)的服務(wù)類型。在引導(dǎo)功能和發(fā)現(xiàn)服務(wù)階段都利用了基于本體的語義服務(wù)信息。
關(guān)鍵詞：動(dòng)態(tài)web 服務(wù)組合，資源選擇，約束滿意問題，語義web 服務(wù)
Abstract：In this work, we present a web service composition system that provides an nvironment for specifying the flow model of the composite service and the user's constraints on he composite service. We adopt our previous work on workflow modeling and scheduling under esource allocation constraints for web service composition and extend it with service discovery unctionalities. In modeling the composite service, the system guides the user for selecting the elevant service types. In both guiding functionality and the service discovery phase, ntologybased semantic information of the services is utilized.
Keywords：Dynamic Web Service Composition, Resource Selection, Constraint Satisfaction
Problem, Semantic Web Services