摘要： 提出了一个基于KPN(Kahn Process Network)的动态服务组装模型，目的是减少动态服务组装的不可预见性以及服务不匹配现象，提高动态组装的成功率。该组装模型采用KPN及相应的KPN调度策略对服务之间的动态交互进行建模。介绍了该组装模型的数据流建模及调度策略，并以一个船舶信息查询系统为例，介绍了该组装模型在实际中的应用。

关键词: 服务, 动态服务组装, KPN

Abstract: This paper proposes a kahn process network (KPN) based on dynamic service composition model, which aims at reducing unpredictable circumstances and uncooperative cases of services in dynamic composition and improving chances of composition success. KPN and corresponding KPN scheduling strategy are used to model dynamic interactions among services. Dataflow modeling and scheduling strategy are introduced and an application of this dynamic service composition model in composition of a ship information query system is presented.

Key words: Service, Dynamic service composition, Kahn process network (KPN)

中图分类号: 

• TP311. 5