As reported by Jeroen Ticheler of FAO NRCE today, they have successfully finished work on implementing the Open Geospatial Consortium Catalog Services for the Web (OGC-CSW) specification in the GeoNetwork opensource Catalog System, the basis for the FAO GeoNetwork. As a result of the project, GeoNetwork opensource is the so-called Reference Implementation of the CSW specification for the OGC. Details can be found here:
The implementation is a recognition of FAO's work on making spatial data (like maps and satellite data) more accessible, using open standards to do so.
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Source: Jelle U. Hielkema from Rome