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July 16 Ad Hoc

posted Jul 15, 2010, 11:55 AM by Joshua Lieberman   [ updated Jul 16, 2010, 8:18 AM ]

Agenda:

    EuroGEOSS Broker - Clearinghouse Connection

    Ontology management

    End-2-end with the GEOSS Common Record

    Status with Clearinghouse harvest

    Other business

Attending:


Josh Lieberman, Kai, Wenwen, Yuqi, Erin, Will, Doug, Steve Browdy

Discussion:

Josh - broker providers not available to talk, but hope for demonstration of broker federation to clearinghouse in the near future. The broker has a repository which is mainly based on SKOS relationships
Steve - can new terms be added dynamically?
Will - it's a protected system, but new vocabularies can be submitted.
Josh - ontology management: broker has a repository which can be visualized, but is not really "open", so something like MMI might be a better choice. It could also serve as a "community catalog".
Doug - University of Tokyo is setting up an ontology facility, but the extent and availability of that facility as a community catalog is not yet defined. Easy enough to add vocabulary as a component type.
Josh - main issue is linking other resources to the vocabularies they use for content and description. If they can be discovered in the CSR / clearinghouse, that's an initial benefit. Could also consider a vocabulary as an interoperability arrangement for the standards registry as well.
Steve - Isn't that good a fit to the standards registry, but could also be an interim measure.
Yuqi - registration is one step, but a repository is critical.
Doug - a repository is really the domain of the ontology task, but AIP-3 could experiment with this.
Josh - a repository would need to support reference from metadata and also reference from external mappings which facilitate broker function.
Doug - Action for a joint session with the semantics and ontology group to define and implement this experiment.
Steve - Where should mappings be managed / registered / discovered?
Josh - as a loose set of information resources, I propose that mappings be entered into the Best Practices Wiki for now as contributed information
Doug - there is an (attached) presentation about the clearinghouse which GMU will show .
Josh - we should assemble the GEOSS Common Record as a proposal for mapping to-from ISO elements so that providers, catalogs operators, and users can leverage them correctly.
Erin - is there a mapping from AQ ISO 19139 record to Clearinghouse 19139 or not needed?
Steve - is it possible to add a queryable property to the Clearinghouse interface? For example, usage constraints are not presently queryable.
Doug - mapping into ISO is pretty comprehensive, there are a good number of queryables in the capabilities, and there is always anyText. Architecture supports adding a field to the queryable index.
Josh - good to know that we can both experiment by way of qualified keywords and propose new queryables if the "catch on"

Actions:

Develop the GCR proposal table as guidance to e2e field usage.

Next meeting:

Propose a joint meeting next Thursday (22 July) at 14h00 UTC between e2e/clearinghouse and semantics/ontology groups to nail down vocabulary management experiment and roadmap.

Logistics:

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Joshua Lieberman,
Jul 16, 2010, 8:16 AM
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