Abstract: This paper presents a multi-agent system model based on Web services, which embeds Web services into the BDI agent structure so that the heterogeneous agents can cooperate easily. The paper also introduces an ontology that describes the agent classes and services supported by the MAS, so that the agents can cooperate dynamically. This model sets up a harmonious and manipulative center, and agents can cooperate temporally uncoupled in the help of its cooperation agency. This paper describes some modules and functions of the model amply, and explains the flow or realization of some services.

Key words: Agent; Multi-agent system; Ontology; Web services

摘要： 针对广域网异质、开放和动态的特性，提出了一种基于Web 服务的多主体系统模型，它将Web 服务嵌入BDI 主体结构，使得异质主体之间得以方便地协作；它引入了关于多主体系统中主体类与服务描述的本体，使得主体之间可以进行动态协作；模型还建立了一个协调控制中心，使主体之间得以进行时间非耦合的协作。对相关模块及功能作了详细的描述，并对一些服务的流程或实现进行了说明。

关键词: Agent；多主体系统；本体；Web 服务