Metadata interest group

general forum for questions, comments, discussion about metadata

Conceptual model for general purpose resource metadata

I have built a UML model (using Enterprise Architect 7.5 tool) of metadata content that is based on ISO19115/19119, but attempts to clean up some of the logical incoherence and inscrutable element labeling in those specifications, as well as adding hooks for more detailed information on specific resource types and resource lineage.

The attached files include a zip archive of the Enterprise Architect-generated html report on the UML model; unzip to a directory and start on the index.htm page.

The EA document (zipped into GenericCompleteMetadataConceptualModel.zip) is the actual UML model. You'll need EA 7.5 or later to open it. The project contains a Metadata package, within which the 'GenericMetadataModel' package contains the actual model. The other packages include UML models for related ISO specifications, elements of which have been incorporated (copied, renamed, modified -- not imported) into the generic model. They are included for reference.

The intention is that this model can serve as a conceptual framework for metadata using a variety of specifications (FGDC, ISO, EML, DIF...) in the USGIN system.

Format agnostic minimum metadata concept

Now that we have a better grasp of the IT and informatics challenges of a distributed and interoperable information network, we can think more again about its adoption - how to make it work and useful on the ground. Following was our rough chain of thought on metadata:

ISO 19139 service metadata record srv:DCPList codelist confusion

It appears that the GeoNetwork WMS harvest selects an incorrect codeListValue for a service metadata record's srv:DCPList (Distributed Computing Platform). Currently, it enters HTTP-GET and HTTP-POST. However, there is a bit of confusion within GeoNetwork and among standards and profiles. Specifically, one could interpret a conflict between DCP in a service's GetCapabilities (OGC) and a service's metadata record (ISO):

Useful site for CSW testing and resources

Tags:

CSW requirements

appears to mostly be compiled by Armin Retterath, Kompetenz- und Geschäftsstelle GDI-RP

Has listing of active CSW servers, some requirements listings

http://www.mapbender.org/CSW_Requirements

ISO metadata editor tool comparisons

The geospatial metadata community has benefitted greatly from the CSDGM Metadata Editor reviews created by Hugh Phillips and posted at: http://www.sco.wisc.edu/wisclinc/metatool/. As we make the transition toward implementation of an international metadata standard, the community requested that FGDC compile information about applications capable of creating ISO 19115 metadata. The information on this page was compiled to address that need.

 

http://www.fgdc.gov/metadata/iso-metadata-editor-review

Syndicate content