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Eco Grid Conference Call Notes 7 Sep 2004

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Participants

Jones, Tao, Rajasekar, Zhu, Brunt, Servilla, Tekell, Spears

Agenda

  1. EcoGrid registry
    • WSDL Interfaces adequate?
    • Web UI needed/ adequate?
    • Registry metadata
    • automatic registration/deregistration for services
  2. EML Metadata for SRB-stored objects
    • Environemntal data for BEAM
  3. Identifiers: use ours, or LSID, and implement!
  4. Certificates and authentication
  5. EcoGrid query semantics
    • handling EML version changes (2.0.0 vs. 2.0.1)
    • translating EML and Darwin Core metadata queries
  6. Update on EcoGrid Web UI design (Tekell) EcoGridWebDesignNotes
  7. Update on data query/subset functionality (Tao)
  8. Update on put interface implementation (Zhu)

Notes

  1. EcoGrid registry
    • need registry metadata
      • Raja suggests need name-value pairs
      • previously discussed need for structured metadata, including coverage, but hard to keep updated
      • Raja argues the more structured registry metadata is not needed, at least from the UI perspective
    • Do we need to reimplement using globus? Probably not? Globus registry still not presistent. Our metacat implementation is persistent.
    • Are there specific metadata fields we need to help users choose nodes to search
    • Action items
      • Extend registry metadata to accept xml metadata documents (Bing, Rod)
      • Establish short list of standard attributes, extend UI to accomodate them (Bing, Rod, Matt)
        • Start at Dublin core and extend it
      • Fill out metadata for specific nodes (Bing, Rod)
      • Make registries broadcast new registration change events (Bing, but lowest priority)
  2. EML Metadata for SRB-stored data sets
    • Option 1: store EML in metacat and point at SRB object (preferred)
      • Figure out where Deana is storing her data (same as LTER)?
      • How to coordinate authentication and access control
        • Use GSI certificates
        • Synchronize SRB/Metacat user lists and access control changes
    • Action items
      • Contact Deana about putting data in SRB and metadata in Metacat (Matt)
      • Verify that accounts can be synchronized between Metacat and SRB (Bing)
  3. Identifiers
    • Agreed on using LSID format for all EcoGrid identifiers
      • need to retrofit existing EcoGrid services to use them
    • Action items
      • Fix get, put, query to use LSIDs everywhere (Bing, after registry stuff)
      • Coordinate with Thau on establishing an LSID server (Rod)
      • Talk with Dave Vieglais about using LSID's for Darwin Core records (Matt)
  4. Overview of Ecogrid web UI
    • Tekell gave overview of progress (see page linked above)
    • has need for EcoGrid Level II interfaces to do resultset merging
    • Q: do we have interfaces defined for getting summary counts back instead of results



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This particular version was published on 07-Sep-2004 12:53:39 PDT by NCEAS.jones.