JPSearch > Part 2

JPSearch Part 2: Registration, identification and management of schema and ontology

All JPSearch interfaces (querying, file format, synchronization) depend on a certain way of referring to or expressing image metadata, so metadata interoperability plays a crucial role in ISO/IEC 24800. The JPSearch framework is extremely flexible in terms of metadata management, and it is not restricted to a single metadata format. In order to achieve the maximum level of flexibility, the JPSearch framework supports image metadata compliant with any metadata format which can be serialized in XML. Examples of supported metadata formats include Dublin Core and MPEG-7.

Despite of the fact that any XML-based metadata format can be used, JPSearch specifies the JPSearch's Core Metadata Schema as the cornerstone of metadata interoperability in ISO/IEC 24800. The Core Schema specifies the structure and rules to which any metadata of images must conform in order to be considered valid within a JPSearch compliant system. In addition to the definition of JPSearch Core Metadata Schema, ISO/IEC 24800 provides a mechanism that allows a JPSearch compliant system taking profit from proprietary or community-specific metadata schemas. A translation rules language allows the publication of machine-readable translations between metadata terms belonging to proprietary metadata schemas and metadata terms in the JPSearch Core Metadata Schema. Users can choose which metadata language to use in a JPSearch-based interaction (annotation, querying, etc.) if the proper translations are available. Part 2 of ISO/IEC 24800 specifies the general rules which govern the usage of metadata in JPSearch.

Summarizing, Part 2 of ISO/IEC 24800 provides a specification which: