基于Petri网的经济预警服务组合模型研究  

Petri-net-oriented economic early warning service composite model

作　　者：张昭玉[1] 白云[1] 

机构地区：[1]苏州科技学院电子与信息工程学院,江苏苏州215009

出　　处：《苏州科技学院学报（自然科学版）》2014年第1期70-75,共6页Journal of Suzhou University of Science and Technology （Natural Science Edition）

基　　金：教育部人文社科规划基金资助项目(12YJA790129);苏州科技学院青年骨干教师基金资助项目(60903131)

摘　　要：针对当前经济预警领域单一模型预测效果不理想,以及模型组合、管理和重用困难等问题,提出了采用面向服务的体系结构构建宏观经济预警平台,将单一预警模型发布为Web服务,并利用Petri网组合预警服务模型的方法,讨论了系统构建方法和服务组合的建模过程,验证了基于Petri网的组合服务模型能够保证组合服务的可达性、安全性、正确性和可终止性。Aiming at solving the problems of economic early warning system, such as the difficulty of model inte-gration, model management and model reuse, and the unsatisfactory effect of single early warning model, this pa-per has proposed a web service model of economic early warning system based on Petri-net. This model adopted service-oriented architecture and published early warning components by web service. We applied a standardized interface to make each component cooperate with each other. We presented an algorithm mapping the early warn-ing model to Petri-net, which was able to complete complex early warning application through services composi-tion. Moreover, we discussed the system construction method and key technologies for dynamic web services com-position. The results show that a composite service composed by Petri-net can insure the reachability, safeness, accuracy and boundness of the model.

关 键 词：WEB服务 PETRI网 面向服务的体系结构 经济预警系统 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]