[DDI-ADG] Geographic coverage descriptions

[Sanda Ionescu]

Kate,
Geographic Coverage will NOT have GeographyValues as a subelement.
In order to use lines 9-23 you would repeat United States under <Geography> 
and then proceed with the rest.
Sanda.



At 01:15 PM 8/29/2005, Katherine McNeill-Harman wrote:
>One question about the new geography spreadsheet.  I was briefed by 
>someone on the rest of the conversation and understand that the group 
>chose to go w/this structure to minimize duplication.  However, along 
>those lines, I want to make sure I understand the description of the 
>Geographic Coverage, specifically the relationship among line 4: 
>description, line 22: Geography Code, and line 23: Geography name.
>
>We had agreed that Geographic Coverage would be machine actionable; this 
>would presumably come in line 22 (as part of geography, then geography 
>values), but then how do the descriptions in line 4 and line 23 
>relate--are they simply duplicates?  It's my understanding that the group 
>believes we can't have any duplicates.
>
>For example, let's say that we're documenting a study about the United 
>States, at which there is information available by state and at lower 
>levels (not aggregated at the level of the U.S.); would the information be 
>as follows?:
>
>4.    Description: United States
>9.    HasSummaryData: N
>10.   GeographicLevelCode n/a? (empty, b/in this case it isn't really a 
>level?)
>11.   GeographicLevelName n/a? (empty, b/in this case it isn't really a 
>level?)
>
>20.      GeographyCode
>21.         Authority: ISO
>22.         Code: 10
>23.      GeographyName: United States
>
>And if in another study there was data at the same level of the geographic 
>coverage (in this case United States), would it be the same as the above, 
>but 9 would be Y and 10 and 11 would be filled in?
>
>So again, my question is why do we have two places for the textual 
>description of geographic coverage (4 and 23)?  And if I'm misinterpreting 
>the role of Geography/Geographic Values, and in fact these won't be filled 
>in for geographic coverage, we still need to provide a mechanism for 
>machine actionability.
>
>Also, I wonder the relationship between line 3: Bounding Box and line 24: 
>Bounding Polygon (although I recall they may have separate and important 
>roles, but since it seems to be a similar issue to the above, thought I'd 
>check).
>
>Kate
>
>___________________________________________
>Katherine McNeill-Harman
>Data Services Librarian
>Dewey Library for Management and Social Sciences
>Massachusetts Institute of Technology
>77 Massachusetts Avenue, E53-100
>Cambridge, MA 02139
>mcneillh at mit.edu
>617-253-0787
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Sanda Ionescu,
Research Associate
Inter-university Consortium for Political and Social Research (ICPSR)
The University of Michigan
P.O. Box 1248
Ann Arbor, MI 48106

Phone: (734) 615-7890
Fax: (734) 615-7890
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