中文摘要：

广域网异质开放的环境给多Agent系统的建模带来了挑战，如何降低系统分析的复杂度、如何提高建模效率成为一个亟待解决的问题．文章从系统工程的角度出发，提出了一种基于组织的多Agent系统建模方法OrgMAS，将复杂系统划分为若干组织分别进行建模设计，从而降低系统分析复杂度．同时，该方法将本体建模贯穿于整个建模过程，使得异质Agent之间能够通过本体映射获得相同的语义基础．文章还介绍了支持该方法的建模辅助工具OrgMASTool，该工具在辅助建模的同时进行模型校验，从而能够提高建模效率。

英文摘要：

The environment of Internet is heterogeneous and openness, which brings new challenges to the MAS Modeling, such as high complexity and low efficiency. To resolve these problems, this paper presents a MAS modeling method based on Organization, which is called OrgMAS. So as to reduce the complexity of system modeling, this method divides the complex system into several organizations, and analyzes these organizations separately. This method also performs Ontology modeling during the process of OrgMAS, so that, the heterogeneous agents can cooperate beyond the same semantics with the help of ontology mapping. This paper also introduced a Case tool, OrgMAS Tool, which can support OrgMAS to model complex system with high efficiency.