SifMeeting-0213-05-17 < GEO

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---+ SIF Meeting, 17-May-2013

Convened: 13:30 - 15:00 UTC

Attending: Steve Browdy (SB), David Arctur (DA), Bart De Lathouwer (BD), Espen Volden (EV, Geosec)

Recording: DA
---++ <a name="Agenda_and_Discussion"></a> Agenda and Discussion
   * *Mime Types for the SIR and CSR changes* (quick review) 
      * Needed for helper apps - please fill in! (see [[https://docs.google.com/spreadsheet/ccc?key=0ArBBCJmc6hv_dDdRS1E5UmF0cjktMDE4YThrQU8wQXc#gid=2][google spreadsheet here]])
      * Bart De Lathouwer will work on the OGC types
      * JM suggests <font color="crimson" class="WYSIWYG_COLOR">we should use mime types for formats, but use the DAB or Context doc URI for service types</font> (are these the same, eg, for WMS?) 
         * I do not like to invent a "new" MIMEType for a service since MIMETypes are intended for formats only. I do not like the idea of application/x-wms because WMS has more that one request and several MIMEtypes associated with them. What we need is something that transmits the following message: "I look for a helper application that suports WMS"; how can we do this for services:
         *  OWS context has its own identifies for services. For WMS it is: http://www.opengis.net/spec/owc-atom/1.0/req/wms. It might be not adequate but is better than inventing a new thing.
         * The DAB uses another "family" of  identifiers for services in the element "protocol" of a ISO 19119 record describing a service. In the case of WMS it uses "OGC:WMS-1.1.1-http-get-map". I like this idea because is already used in the GCI.
            * See an example here: http://184.73.174.89/gi-cat-StP/services/cswisogeo?service=CSW&request=GetRecordById&id=GMRT_WMS&outputschema=http://www.isotc211.org/2005/gmi&elementSetName=full
      * Please don't invent new URI types
   * *Discussion of Data Citation as an SIR entry* (with Hans-Peter Plag) 
      * Hans-Peter not on the call
      * see: [[http://www.gstss.org/library/GEOSS_Data_Citation_Guidelines_V2.0.pdf]]
      * SB: proposes to put this document in the Best Practices Wiki, rather than in the SIR. This does not represent a community-adopted standard or special arrangement.
      * DA, JM agree; <font color="crimson" class="WYSIWYG_COLOR"> *ACTION* </font>: SB will put this in the BP Wiki and ask Hans-Peter to suggest a future meeting time if further discussion is needed.
   * *UNEP Live update* (with Mick Wilson) 
      * Email update from MW: New activity toward interoperation of UNEP Live with MEA Knowledge Domains (controlled vocabularies), with donor funds from Eye on Earth. So UNEP-Live will contribute to AIP-6.
      * BD: will this show up in the showcase demos?
      * SB: has submitted this already, for UNEP Live to interoperate with the DAB.
   * *SIF Operating Procedures review* (see [[SifMeeting-2013-02-08][Feb 8 SIF telecon notes]]) 
      * SB: wishes to submit to IIB by June; can deal with this via email before May 31 (next SIF meeting)
   * *OWS Context Standard in GEOSS (BPW/Tutorials)* 
      * Based on discussion around Context doc's re: mime types for helper apps: guidelines for Context docs would be good to include in BP Wiki
      * Hervé Caumont suggested the SIF investigate & understand the usefulness of OWS Context for GEOSS
      * DA: OWS Context could serve like a "shopping cart" for a GEOSS user during search & discovery
   * *2013 interoperability topics to consider* (results in two whitepapers) 
      * _Broker &ldquo;knowledge&rdquo; of resource metadata and fixing "numbers" issues_ 
         * need to understand if or how Broker can do secondary searches (finds a catalog resource during a search, and propogates search to that catalog)
         * "numbers" issue: how many datasets are accessible via GEOSS? where does the figure "millions of datasets" come from? can't easily discover millions of datasets from routine search.
         * DA: CEOS Water Portal claims "millions of datasets" alone
         * SB: ACTION: will ask Stefano or Mattia to join SIF call and tell us how they get "millions of datasets"
         * JM: see DAB client here: [[http://www.eurogeoss-broker.eu/]] -- open search result (all records) gets about 651k datasets; all GEOSS Data Core results 363282 datasets. Note that CEOS Water Portal does not appear as one of the searched catalogs.
         * JM: found reference: An active crawler for discovering geospatial Web services and their distribution pattern &ndash; A case study of OGC Web Map Service [[http://dx.doi.org/10.1080/13658810903514172]] (IJGIS download for fee)
      * _Registration alternatives: registering in CSR vs. registering in DAB_ 
         * need to reaffirm that the registration process for GEOSS (GEO Portal) always involves the CSR (geossregistries.info). Datasets are being registered in broker but not in CSR. This is a usability and CSR workflow issue; should SIF work on this?
         * BD: we should add this to IIB agenda; SB: SIF could stress importance of following correct registration process, or could investigate alternatives to current registration process and suggest improvement.
         * SB: <font color="crimson" class="WYSIWYG_COLOR"> *ACTION* </font>: will write up summary to SIF list about alternatives
      * _Investigation of OWS Context for use in GEOSS_ (worth pursuing; see notes above for today's discussion)
   * *Any other business* 
      * Work Plan Symposium (IIB Meetings): role of SIF, comments on new Terms of Reference (next telecon)

Next meeting date: 31 May 2013

-- Main.DavidArctur - 14 May 2013
Topic revision: r5 - 18 May 2013, JoanMaso
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