Description of Work (DoW) says:
Building on the existing GBIF and LTER registry and metadata catalogues, an enhanced and integrated metadata system will be developed for EU BON. The various entities such as networks, projects, sites, and datasets identified in the analysis and mobilization efforts of WP1 will be described in the new registry/catalogue. The entity descriptions should include web service interfaces or other access points, and will also be registered at the GCI and other indexing services. In order to overcome heterogeneity of data, accommodate multilingualism, enhance discoverability and interoperability, and facilitate querying in portals, the use of Knowledge Organisations Systems (KOS; e.g., thesauri) will be explored.
The requirements as stated in the EU BON DoW recognise the need to draw on already existing registries and catalogues such as GBIF and LTER and to integrate these with the GEOSS Common Infrastructure (GCI). It also indicates the kinds of entities that should be documented, including not only data sets but also related networks, projects and sites. The system developed should also support semantic querying.
Networks and data repositories participating in EU BON are expected to expose their data and metadata through standards-based services, e.g., well known international standards such as OGC CSW and W*S or community agreed de facto standard such as the GBIF APIs. The principal task for a registry such as EU BON is then to integrate information across such disparate networks. One solution to this problem is to use a broker, a component which acts as a communications middleman between the source and the target of a communication. By this means, a community can continue to use their own technologies and standards and leave the establishment of interoperability across communities to the broker. The broker becomes responsible for interfacing to the various community standards and mapping them to a common internal model so that all the participating networks become accessible via a single unified interface. The broker can also support well known standards such as OGC CSW.
As the scope of the EU BON network becomes clearer (Q1 2014), several specific components and sub-networks have been identified for integration. These include, e.g., the broader DataONE network (including LTER, KNB, ILTER, Dryad), DaEuMon and DEIMS.
The architecture for the EU BON registry as deployed using GI-cat.
*Text and figure are cited from MS241: Specification for registry and metadata catalogue
- Presentation of Éamonn Ó Tuama (GBIF) at 2nd EU BON Training event: "EU BON Registry"