摘要
在Internet环境中,客户可以通过移动代理的搜索,发现所需的产品和服务,并向服务提供者提出服务请求。服务提供者对客户的请求进行逐级的分解并响应,从而构建起一条由客户发起的服务供应链。传统的自顶向下和自底向上的供应链构建方法,都不太适合在Internet开放和分布式的环境下构建服务供应链。因此该文主要研究通过移动代理搜索的方法来构建服务供应链。首先用任务关系图描述了客户及服务提供者之间的服务关系,分析并比较了几种典型的服务提供者,提出了“桥式服务”的概念;接着在移动代理简单搜索策略的基础上,通过实验仿真研究了构建最优服务供应链的概率,以及服务提供者的类型和移动代理的数量变化,对这种概率的影响及趋势。
In Internet,consumers can find products and services they needed through the searches of Mobile Agents(MA)and request the service form the suppliers.Then the suppliers disassemble the requests into the sub-requests and respond the sub-requests cooperatively.Thus a Service Supply Chain(SSC)originated form consumers can be built up.But the existing bottom-up and up-bottom Supply Chain formation methods are not very suitable for the formation of SSC in the open and distributed environment of Internet.So it does some researches on the formation of SSC based on MA.First it analyzes the service relationship among consumers and suppliers with Task Dependency Network(TDN)and different types of suppliers.Then it brings forward a new concept of ″Bridge Service″.And it studies the probability of formation of SSC based on the ″Simple Strategy″ of MA.With some simulation experiments,it is concluded that this probability can be influenced by the type of suppliers and the variety of quantities of MA.
出处
《计算机工程与应用》
CSCD
北大核心
2005年第10期19-21,34,共4页
Computer Engineering and Applications
基金
国家自然科学基金项目:网络及信息安全重大研究计划(编号:90204010)
关键词
移动代理
服务供应链
仿真模型
mobile agent(MA),Service Supply Chain(SSC),simulation model
