本文就國立臺中圖書館為提供公共圖書館共用數位資源，包括電子資料庫、電子書、數位影音資源、數位學習教材等，所建置的數位資源管理系統，分析系統對數位資源授權管理機制，以及系統分享他館使用之界面等。探討的系統包括：公共圖書館數位資源入口網、電子書服務平台、線上視聽媒體中心(VOD系統)、遠距傳播教學中心(數位學習系統)等。並提出目前圖書館數位資源應用問題，未來管理系統應用發展，期盼在系統管理機制下，能取得更為合理的授權模式，擴大公共圖書館共用數位資源的服務範圍。

This paper intends to analyze the interfaces and authorization mechanisms of digital resources sharing by examining the digital resources management systems established by National Taichung Library for the purpose of providing the service of digital resources sharing in public libraries, including electronic databases, e-books, digital audio and video resources, and e-learning materials. The analyzed systems include General Access to Public Library Digital Resources, E-book Service Interface, Online Audio-Visual Media Center (VOD system), and Distance Learning Center (E-learning system). This paper finally points out some issues related to current applications of digital resources and future development of management systems in public libraries. These issues should be considered in order to formulate more reasonable authorization mechanisms and expand the scope of digital resources sharing in public librarie