圖書館自動化系統架構是建置於其上各作業模組運作之基礎，是圖書館自動化系 統開發或選用系統非常重要的考慮因素之一。 隨著資訊系統快速朝向小型化 (downsizing) 、適型化 (rightsizing)、分散化 (decentralizing) 之趨勢，正確的資訊系統架構的規劃 或選擇，可使系統具有整合組織內外資訊資源之彈性。本文試圖從一般性自動化系統三層式 及 Internet/Intranet 應用的架構分析到國內外圖書館自動化系統架構現況分析中， 歸納 圖書館自動化系統出的二種集中式系統架構及六種分散式之架構類型，並提出現階段架構規 管之建議，希望能對現行規劃中或將進行中圖書館自動化系統建置之使用者參考。

　　　　　The system architectures of the library automation system are the basis of its system development and/or library software selection process. The emergence of system development towards downsizing, rightsizing and decentralizing. The appropriate adoption or selection of system architectures will enable system to be fiexible and integrated. The purpose of this paper is trying to analysis the system architecture of current library automation systems and summary to one centralized type and six decentralized type models. Finally, the paper suggests some guidelines for adoption or selection system architecture for library automation system.