元数据技术在舰艇数据共享平台中的应用与实现

摘要

Metadata is data about data ,is the key technology for data sharing .The metadata technology ,core structure in data sharing platform ,needs to build a unified standard ,consistency of data schema .Producers extract and define the metadata int global libraries ,subscribers query the global libraries to find the data ,since the relationship between subscribers and producers has been established .Metadata ,a rich data form ,has been implemented with web service architecture to com‐municate between different platforms under the wireless environment ,can be applied to data sharing between ship .%元数据是描述数据的数据，是数据共享的关键技术。以元数据为核心构建数据共享平台需要建立统一的元数据标准，以实现异构数据的一致性表达，资源的生产者按照元数据标准抽取元数据，注册到全局资源目录中；使用者通过资源目录查询定位元资源，并与资源生产者建立订阅关系从而实现数据资源的共享。论文利用元数据技术、Web Service 架构实现了无线环境下不同平台之间的数据共享，能够适用于舰艇之间数据共享。