An approach to achieve an optimal result of web service composition based on coarse-granularity requirements
Xueshan Luo · Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University · 2010
Based on the fact that users usually put forth a coarse-granularity request,a service composition optimizing method which was user-oriented and based on the QoS value was proposed.It gathered the services which can fulfill a single desire of the request into a kind of service set,and then composed the set of services into feasible solutions according to business logic.Taking the details of user's request,it scientifically composed the service instances of various service sets into an optimal service set which met the functional requirement and had the optimal Quality of Service(QoS) index,and then formed the optimal path by comparing with the services which had multiple functions.In contrast to the previous solutions,this method considered the user's practical request and the load of the system together,constructed reasonable and optimal services,and formed an optimal path to fulfill the user's request.It is suitable for the real life environment.