【摘要】 元数据是"关于数据的数据",是用来描述资源属性的信息。使用元数据的目的是为了使资源更容易被发现、获取和利用。然而由于不同的部门采用的元数据模型不同,导致了数据不能在部门间共享。为了解决这一问题,文中将本体的思想引入到元数据模型中,并参照军用标准建立了基于本体的军用元数据模型。与传统的元数据模型相比,这种模型能从语义层面更好的表达领域中的各个概念以及概念之间的各种关系,为解决信息系统之间的异构问题提供了相应的理论基础。更多还原

【Abstract】 Metadata is "the data about data",it’s the information that is used to describe resources’ properties.The purpose of using metadata is to find,get and use resources easily.However,different department has different metadata,which made data can not share among departments.For the sake of solving the problem,introduce the thought of ontology into metadata model,and then present an ontology based military model refer to the military standard.Comparing with the traditional one,this model can express domain concepts and the relationships between them from semantic level,which provides theoretical basis for solving the isomerism between information systems.更多还原