[DDI-ADG] Geographic/spatial elements

[Wendy Thomas]

Geographic/Spatial elements/attributes are found at the following
locations:

Resuable Class:
  Universe
    SpatialCoverage

LogicalProduct (both basic and nCube)
  Variable
    geographic [a logical Y|N switch to identify a geographic variable]
    geogrpahicVocabulary [identifies coding scheme used ex. NUTS2, FIPS]

  label [found in Variable, VariableGroup, nCube, nCubeGroup,
DimensionVariable]
    country [allows for the association of a country code for labels that
differ by country - example: wording difference between UK and Germany]


Note that the use of "country" in label limits geographic differntiation
between labels based on country rather than a more generalized geographic
unit. For example: I cannot use this to indicate that in Minnesota the
Party name for the Democratic Party is Democratic-Farmer-Labor Party
whereas in the rest of the US its Democratic Party.

The use of the geographic (Y|N) and geographicVocabulary [controlled
vocabulary identifier] is for the specific purpose of informing a program
that this field can be used for geographic identification and the coding
structure being used. Many files contain the same information in multiple
coding schemes. The intent was to flag these....there are multiple ways to
do this if you want a more centralized reference.

Location of these items within the DDI-Version3-SRG_TagNames spreadsheets:

SpacialCoverage:
  sheet: REUSABLE CLASSES
  lines: 49-69

geographic and geographicVocabulary:
  sheet: PKG LOGICAL PRODUCT - BASIC   (repeated in variable in "- nCube")
  lines: 48-49

county (within label):
  sheet: PKG LOGICAL PRODUCT - BASIC (repeated in variable variableGroup
and dimensionVariable in - nCube)
  lines: 20, 52, 84, 95
  sheet: PKG LOGICAL PRODUCT - nCube (in addition to repeated classes)
  lines: 127, 192


Wendy L. Thomas                          Phone: +1 612.624.4389
Data Access Core Director		 Fax:   +1 612.626.8375
Minnesota Population Center              Email: wlt at pop.umn.edu
University of Minnesota
50 Willey Hall
225 19th Avenue South
Minneapolis, MN 55455