This paper clarifies the definition and basic structures of information systems,points out that unified information systems require the flexible comprehensive integration and reveals the key software technologies that can be changing on demand,and gives the necessary classification and annotations of the related technologies,including middleware,various appli-cation integration middleware and virtualization.Final y this paper discusses the technology and method should be taken by comprehensive integration in military information system.%诠释了信息系统的含义和结构,并指出为适应用户需求的不断变化及发展,一体化信息系统的综合集成应当是柔性的,进而就包括中间件和各类应用集成中间件和虚拟化技术的相关的技术作了必要诠释,最终提出了军队信息系统综合集成建议采用的技术和手段。
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