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文中介绍一个基于Ｉｎｔｅｒｎｅｔ的信息检索系统：ＤＯＬＴＲＩ－Ａｇｅｎｔ．ＤＯＬＴＲＩ－Ａｇｅｎｔ用于从Ｉｎｔｅｒｎｅｔ上发现和收集用于远程开放教学（ｄｉｓｔａｎｃｅａｎｄｏｐｅｎｌｅａｒｎｉｎｇ，ＤＯＬ）中进行课件设计的教材信息．ＤＯＬＴＲＩ－Ａｇｅｎｔ采用多Ａ－ｇｅｎｔ（ｍｕｌｔｉ－ａｇｅｎｔ）体系结构，能够根据用户的需要主动、智能和协作地从Ｉｎｔｅｒｎｅｔ上各种信息资源（如数据库，ＷＷＷ服务器等）处发现和收集教材信息，并对搜集到的教材信息进行管理和维护．文中主要针对Ａｇｅｎｔ的协作性、互操作性和运行环境讨论ＤＯＬＴＲＩ－Ａｇｅｎｔ提出的解决方案．
This article describes an Internet-based information retrieval system: DOLTRI-Agent. DOLTRI-Agent is used to discover and collect teaching material from the Internet for courseware design in Distance and Open Learning (DOL). DOLTRI-Agent employs a multi-agent architecture that proactively, intelligently and collaboratively identifies and collects textbook information from various information sources on the Internet (such as databases, WWW servers, etc.) based on the needs of users Collect and manage the teaching materials and information. This paper mainly discusses the solutions proposed by DOLTRI-Agent for the cooperation, interoperability and operating environment of Agent.