Data Model Design Technical Team

The Data Model Design Team (DMDT) was established in 1999 by the North American Geologic Map Data Model Steering Committee (NADMSC). DMDT’s objective is to draft a standard geologic map data model to aid interoperability of geologic map-centered databases developed by state, provincial, and federal geological surveys. The model is being developed to provide a conceptual basis for the design of various schema, such as those for databases and data interchange formats.

• Charter
• Discussion Forum

DMDT Products and Publications

• 2004, "NADM Conceptual Model 1.0" (new)
• 2002, "Progress Report: North American Geologic Map Data Model Design Team"
• 2001, "Developing the North American Geologic Map Data Model"
• 2000, "Developing the North American Geologic Map Data Model"
• 1999, "Digital Geologic Map Data Model version 4.3" (Logical Model)
• NADM GML Physical Model (new)—see Data Interchange Technical Team

DMDT Related Documents

• CONCEPTUAL REQUIREMENTS ANALYSIS
  • • background for requirements analysis



• DIGITAL GEOLOGIC MAP DATA MODEL version 4.3 -- VARIANTS AND IMPLEMENTATIONS

  • Geological Survey of Canada—CordLink 5.2
    • description
    • diagram (pdf)
    • example (pdf)
    • implementations: CordLink, HydroLink, GASL
  • Idaho Geological Survey
    • description (pdf)
    • diagram (pdf)
    • more details
  • Arizona Geological Survey
    • description (pdf)
  • USGS National Geologic Map Database—Kentucky Geological Survey
    • description (pdf)
    • diagram (pdf)
    • more details

  • Controlled Vocabulary

    • LithClass 6.1: Geological map unit classification, ver. 6.1

• OTHER PUBLICATIONS

  • Bedford et al., 2003. "Geologic Database for Digital Geology of California, Nevada, and Utah, an Application of the North American Data Model"

  • Boisvert, et al., 2002, "Using NADM in a Distributed Framework"

  • Boisvert, et al., 2001, "Using the Proposed North American Data Model in a Distributed Database Environment"

  • Weisenfluh, 2001, "Map Unit Descriptions and the North American Data Model"

  • Wahl, et al., 2000, "Prototype Implementation of the NADMSC Draft Standard Data Model, Greater Yellowstone Area"

  • Brodaric, et al., 1999, "Using the Proposed U.S. National Digital Geologic Map Data Model as the Basis for a Web-Based Geoscience Library Prototype"

  • Raines, et al., 1997, "Progress Report -- Digital Geologic Map Data Model"

DMDT Meeting Notes

• June 14, 2006, Columbus, Ohio
• April 27, 2005, Baton Rouge, Louisiana
• November 10, 2004, Denver, Colorado
• May 19, 2004 in Portland, Oregon
• November 4, 2003 in Seattle, Washington
• June 4, 2003 in Millersville, Pennsylvania
• October 29, 2002 in Denver, Colorado
• May 21-22, 2002 in Salt Lake City, Utah
• Progress report delivered at DMT'02 (PPT)
• November 6, 2001 in Boston, Massachusetts
• May 23, 2001 in Tuscaloosa, Alabama
• November 13-14, 2000 in Reno, Nevada

DMDT Members

• Eric Boisvert (Geological Survey of Canada)
• Boyan Brodaric (Geological Survey of Canada, Chair)
• Jordan Hastings (Univeristy of California—Santa Barbara)
• Bruce Johnson (US Geological Survey)
• James McDonald (Ohio Geological Survey)
• Steve Richard (Arizona Geological Survey)
• Peter Schweitzer (US Geological Survey)
• Ronald Wahl (US Geological Survey)
• Jerry Weisenfluh (Kentucky Geological Survey)