关键词: 群体研讨支持系统, 项目管理信息系统, 群体协作

Abstract: Project management is widely used in various industries.But it is difficult to apply the project management software in many areas in practical applications.Based on the problems occurred in the current project management software application，this paper has proposed the needs of project management system.On this basis，from the perspectives of project management process，project management expertise and project stakeholders，a project management framework used to organize group activities is presented.A project management information system based on Group Argumentation Support Systems is designed to realize project stakeholders as the center of the project with a wide range of information integration.According to the project management and information needs，how to achieve the needs of project information management in the system is described.

Key words: Group Argumentation Support Systems（GASS）, project management system, group collaboration