近年來，電子圖書館已成為圖書館界努力追尋的目標。電子圖書館的主要元素有三：電子化館藏、電子化作業和電子化服務。由於個人化和社群化乃是圖書館電子化服務的發展趨勢，為提供圖書館界發展個人化與群體化服務的參考，本論文探討如何以圖書館自動化系統為基礎，在圖書館建置個人化與社群化的服務。本文主旨如下： (1) 提出以圖書館自動化系統為基礎之個人化與群體化服務的系統架構； (2) 研究動態追蹤使用者興趣的相關理論，並將之應用在個人化服務； (3) 將資料探勘應用於圖書館館藏借閱共同性及順序性的探索，以提供群體化服務； (4) 根據以上的理論實作一套具備個人化與群體化功能的交通大學個人化圖書資訊環境系統。

In recent years, libraries have decided to move toward electronic libraries. Electronic collection, operation, and service are the three aspects of an electronic library. The current trend in electronic service is to provide users with personalized services and group them into communities for sharing common interests and knowledge. In order to foster the development of a personalized and group information system in an electronic library format, this article studies how to establish such a system using library-automation systems. This article aims at the following: 1. Proposing a framework for a personalized and group information environment based on library-automation systems; 2. Studying how to dynamically track user interests and apply the research result to a personalized electronic service; 3. Studying the data mining technique and applying it to on electronic service that enables the formation of user communities; and 4. Implementing a prototype system, called Personalized Information Environment at NCTU (PIE@NCTU).