"数字省(区)"是国家信息化的基本单元。其立足于福建省信息化系统工程——"数字福建"的建设实践,以区域信息化建设的关键问题——信息资源建设、信息共享和应用服务为对象,针对目前"条块"分隔的电子政务应用、低水平重复的信息化工程和信息服务现状,为最大限度地发挥信息和网络的效益,提出"信息应用基础设施"的理论体系框架,设计了低成本、集约化、可持续的信息共享与服务技术体系,介绍了信息化公共应用服务软件平台的构成,包括通用信息安全基础支撑平台、电子政务应用基础支撑平台、电子商务应用基础支撑平台、企业信息化应用基础支撑平台、社区信息化应用基础支撑平台、地理空间信息应用基础支撑平台等。数字区域信息应用基础设施是在信息网络基础设施、信息安全基础设施和信息资源基础设施上层的基础设施,其目标是要建立信息拥有方和信息使用方之间可持续的信息服务链。其为电子政务、电子商务、数字城市、数字社区、位置服务等各种数字区域信息化应用工程提供基础性、公共性的应用服务支撑,为从根本上解决数字区域信息资源的利用、共享与应用服务提供了理论和实践基础。

"Digital Province" is the basic unit for the national informatization in China.To maximize the benefits of information application infrastructure and to break the "barrier" between different departments or regions, this paper put forward a theoretical framework of "information application infrastructure" based on the practice of Fujian provincal informatization project, i.e."Digital Fujian".Targeting to the key issues of information resources development, sharing, application and service, and aiming at improving the level of information engineering and information services, this framework should be centered on some public supporting software and a specialized information service institution, which act as a information broker bridging the information provider and consumer.We designed a low-costing, intensive and sustainable information sharing and service technical system and introduced the components of public service software platforms for informatization application, including supporting platform for general information security, e-government application, e-business application, enterprise informatization application, community informatization application and geospatial information application etc.Digital regional information application infrastructure is the upper infrastructure of information network, information security and information resources and is to establish sustainable information resources and technical service chain between the information provider and consumer.Meanwhile, it provided fundamental, public application service support for various digital regional informatization application projects, such as e-government, e-commerce, digital city, digital community or location services, and it also provided the theoretical and practical basis for fundamentally achieving the utilizing, sharing and application service of information resources.