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【目的】解决在中国科学院联合机构知识库系统建设过程中出现的服务提供方与数据提供方的数据同步问题。【应用背景】中国科学院联合机构知识库系统基于OAI元数据互操作接口构建而成,服务提供方只有保持与数据提供方的数据一致,才能向用户提供准确有效的数据。【方法】对现有的OAI接口进行扩展,实现资源集合更新、映射关系更新以及无效数据检测等功能,并自定义新的元数据模式和操作方式。【结果】扩展后的OAI接口可有效实现机构知识库资源集合及条目的数据同步,支持复杂元数据格式的数据交换和共享。【结论】本方法切实有效地解决实际问题,并可为类似系统提供参考依据。
【Objective】 To solve the problem of data synchronization between service providers and data providers appearing in the construction of knowledge base system of CAS. Application Background The CAS repository system is based on the OAI metadata interoperability interface. The service provider can provide users with accurate and valid data only when it is consistent with the data provider’s data. 【Method】 The existing OAI interface is extended to realize the functions of resource collection update, mapping update and invalid data detection, and to customize the new metadata mode and operation mode. 【Result】 The extended OAI interface can effectively realize the data synchronization between institutional repository and resource entry, and support the exchange and sharing of data in complex metadata formats. 【Conclusion】 This method can effectively solve practical problems and provide reference for similar systems.