数字图书馆是用数字技术处理和存储各种文献信息资源的图书馆 ,它是一种以多媒体为主体的分布式信息系统 ,涉及信息加工、存储、检索和利用的全过程.云计算技术给数字图书馆的功能和应用服务带来了很大变革.结合云计算技术 ,基于三层架构(数据层、业务层和应用层)进行了数字图书馆平台设计与开发.在其设计与开发中 ,需要考虑对数字图书馆各种功能与应用的整合 ,建立及时有效的信息服务反馈机制 ,并构建数字信息公共服务平台.%The digital library is the library which use digital technology to store and processing a variety of document and information resources .It is a distributed information system w hich takes multimedia as the main body ,involving the w hole process of information processing ,storage ,retrieval and use .Cloud computing technology brings great change to the functions and application services of the digital library .Combined with cloud computing technology ,design and develop-ment the digital library platform based on three-tier architecture (data layer ,service layer and application layer) .In the process of design and development ,need to consider the integration of the various functions and applications of digital li-brary ,and establish the timely effective information service feedback mechanism ,and build the digital information public service platform .
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