A study on typical architecture layers of the digital library alliance based on the enterprise architecture

A digital library is an extensible knowledge network system under internet environments; it is also a community service organization which can provide information and knowledge services. There are many professional libraries in country, which provide characteristic contents in professional field for customers. In order to provide integrated information or multiform contents to customers, these professional libraries should be united to establish digital library alliances. EA is one of the most popular architecture methodologies for information and service sharing. In this paper, a cooperative framework of sharing chain for digital library is proposed. Based on the analysis of the building concept of the construction of the Digital library Cultural Information Service Union, This chapter putted forward Digital library Cultural Information Service Union´s system framework which based on enterprise architecture, and have choose the architecture tool - PowerDesigner15 which supports the shape, integrated enterprise modeling environment to specific design information architecture, application architecture and technical architecture´s sub-architecture model of the digital library union. And it makes the various sub-framework organically combined, to achieve the harmonious and unified between the business processes and technical facilities of the union. In our future work, we will study the key technologies of EA and construct the cooperative platform of service chain for digital library.