摘要： 本文主要论述了数字图书馆的发展、建立数字图书馆的技术和数字图书馆的服务模式。数字图书馆的出现为 读者提供了远程访问，资源共享等优点，充分体现了计算机、网络时代的特点。数字图书馆对信息密集型工作和学习 提供了有效的工具和方法；大大扩充了信息的获取范围，提高了信息处理效率．数字图书馆中的资源比印刷型载体更 便于检索，使学者以最快速度，获取所需资料；对教育、科研和技术开发都有重大的意义。

关键词: 数字图书馆, 图书馆网络, 元数据, 资源共享

Abstract: This paper describes the concepts and the model of a digital library (DL) as well as overview of DL in the world. A real digital library model should consist of four structures levels, which are user interface, networks and communications, information resources and reference service system. There are five functions in the digital library,which are digitized documents for various media, large stores, quick access fast transfers, privilege and management. We are creation the prototype of the digital library in Shanghai Jiaotong University They include a goal and content built SJTU DL, an environment of hardware and software and digital library support services and agents.

中图分类号: 

• TP399