GW2IE Meeting 18 -- Mon-Thurs 05-08 May 2014 -- Logical Model


Confirmed Attendees

  • Bruce Simons; (CSIRO staying at Hotel Adlon,
  • Jessica Lucido; (USGS staying at Hotel Artis)
  • Alexander Kmoch (U Auckland / Salzburg; place tbd)
  • Peter Dahlhaus (Federation University Australia, staying at Hotel Adlon. 3/5 - 11/5)
  • Sylvain Grellet (BRGM staying at Hotel Adlon) : arriving May 5th (around noon) - leaving the 7th mid-afternoon
  • Eric Boisvert (GSC staying at Hotel Artis) 3 -9 May
  • Boyan Brodaric (GSC)
  • Bernhard Wagner (Geological Surveys of Germany)
  • Gerhard Schubert (Geological Survey of Austria)
  • Hermann Klug (U Salzburg)


  • Host: Geological Survey of Austria (Gerhard Schubert)
  • Address:
    • Geologische Bundesanstalt
    • Neulinggasse 38
    • 1030 Wien
    • 3. Stock Neubau (4th floor new building), Conference room 3.35.00
  • Location Map: in English



  • Proposed:
    • Mon 5 May : Wrap up: conceptual model development
      • Flow
      • Wells
      • INSPIRE compatibility check
    • Tues 6 May: Progress: logical model development (GML/XML)
      • GeosciML link
      • O&M link
      • cardinalities (logical vs conceptual)
      • auto-generate compatibility
    • Wed 7 May am: Progress: logical model development (GML/XML)
      • same as above
    • Wed 7 May pm: Planning: use case implementations, schema development
    • Thurs 8 May am: TBD
    • Fri 9 May: optional for small group work for anyone remaining


  • Conceptual Model
    • completed mid-week
    • major revisions:
      • fluid body: added constituent relation
      • groundwater flow: revised interFlow, intraFlow, and water budget
      • wells: revised wells and springs
  • Logical Model
    • completed significant portion of first draft at end of week
    • major items:
      • pattern: identify voidable properties and others
        • voidable properties may not have empty values: explicitly require a null value to indicate empty/unknown
        • non-voidable properties may have empty values
      • Hydrogeological Units, Groundwater Properties
        • pattern: used OM_Measurement for properties requiring soft-typing, uom, and method metadata (how the value was calculated)
          • e.g. gwUnitProperty, gwPermeability, gwPorosity (there are many kinds of permeability, porosity, etc., that can be calculated in various ways)
        • use GeoSciML PhysicalProperties for EarthMaterial properties (not OM_Measurement) to avoid extending GeoSciML
      • Fluid Body
        • use Observations & Measurements to encode water quality constituents, i.e. Material, Chemical, and Biologic
        • then GW_ChemicalConstituent, etc., are features-of-interest for the observation
      • Wells
        • Lithology Logs: use O&M to encode Logs
        • Boreholes and WellConstruction: use GWML1 package
  • Use-Case Implementations
    • confirmed participants
    • reviewed and confirmed objectives
    • note: use case 5 well underway with INSPIRE - GWML2 CM 1.0 mapping
  • Workplan (aggressive)
    • end May: complete logical model
    • mid June: generate XSD, XML instances
    • early July: compete draft report (contains conceptual model, logical model, XML conformance classes and instances)
    • July: review draft report
    • early Aug: submit draft report to HDWG for feedback at HDWG annual meeting Aug 2014 in NY


GW2IE_Vienna2014_Photo1.JPG GW2IE_Vienna2014_Photo2.JPG
Topic attachments
I Attachment Action Size Date Who Comment
GW2IE_Vienna2014_Photo1.JPGJPG GW2IE_Vienna2014_Photo1.JPG manage 398 K 27 May 2014 - 21:38 BoyanBrodaric GW2IE Workshop Vienna group photo #2
GW2IE_Vienna2014_Photo2.JPGJPG GW2IE_Vienna2014_Photo2.JPG manage 449 K 27 May 2014 - 21:37 BoyanBrodaric GW2IE workshop Vienna group photo
Topic revision: r17 - 09 Jun 2014, BoyanBrodaric
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