数字环境下用户的信息需求出现趋向无缝获取,注重评价选择,强调互动参与,更加自主自助和逐步纵深微观的变化,而这些变化与图书馆现行的信息流信道不畅,过程难企及,信源质量难控制等存在着显著的矛盾,因此,要从信源、信道、信宿三方面进行控制,以保障图书馆信息流的畅通运行,保证用户的需求得以满足。 In the digital environment, users’ information needs tend to be seamlessly acquired, focusing on evaluation and selection, emphasizing interactive participation, more autonomy and self-help, and gradual changes in the micro-level. These changes are not compatible with the existing information flow channels in the library and are difficult to process. Therefore, it is necessary to control from three aspects: source, channel and sink to ensure the smooth flow of library information flow and to ensure that the needs of users are met.