Comparative Research On Digital Library Developing Model

Since 90th last century, within the implementation of network communication and information technology, digital library was listed as an important part of national information infrastructure and knowledge economy in many countries, which is a new developing model of information management and service. Numerous libraries also involved in the construction of digital libraries in China. It is important to analyze the application of digital library in globe world and choose the feasible developing model.The article presents the analyzing of digital library developing model, including:1 Analyse of three periods of digital library overseas;2 General situation, characteristic, trend and problem maintained of digital library developing model in China;3 Classification and analyze digital library developing models as purpose and operation developing model;4 Elements to influence the choice of digital library developing model;5 Application of digital library developing model in China; 6 Research for national digital library developing model.Since the different intentions, institutions and professions, digital library developing models were different. The article is focused on the characteristics of different digital library developing models, elements to influence the choice of developing model and the applications of diverse digital libraries developing models.