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Common Operational Dataset tutorials may be found in the IM Toolbox > Tutorials > Common Operational Database tutorials section.


OCHA routinely evaluates the quality and availability of Common Operational Databases.

Administrative boundary and population statistics COD dashboard


This dashboard documents the quality and availability of the administrative boundary (COD-AB) layers and live services and population statistics (COD-PS) tables on HDX.  The dashboard has four tabs:

Usability Evaluation Overview

Detailed Evaluation

The 'Status and Rating by Country and Region' matrix groups countries by region and 'operational' vs 'preparedness' status, and depicts the attributes in the following groups:

'Administrative Boundary'

  • 'ADM1', 'ADM2', 'ADM3', and 'ADM4':  Administrative level 1, 2, 3, and 4 boundaries as 'fully usable' (green dot), 'partly usable' (orange dot), 'needs improvement' (red dot), or 'unavailable' (grey dot).
  • 'HDX':  availability on HDX (green tick) or unavailability (grey dot)
  • 'LIVE':  availability of live services (green tick) or unavailability (grey dot)

'LINK'

  • 'AB-PS':  compatibility of P-codes and records allows linkage between Administrative Boundary polygons and Population Statistics records

'Population Statistics'

  • 'ADM1', 'ADM2', 'ADM3', and 'ADM4':  Administrative level 1, 2, 3, and 4 population statistics as 'fully usable' (green dot), 'partly usable' (orange dot), 'needs improvement' (red dot), or 'unavailable' (grey dot).
  • 'HDX':  availability on HDX (green tick) or unavailability (grey dot)




ITOS Live Web Services



Frequently Asked Questions


Evaluations


COD-ABs and COD-PSs are evaluated by FIS should be evaluated according to established criteria to maintain standardized levels of quality.


CODs may be evaluated:

  • Informally by country IM teams at any time
  • Semi-formally by the country IM every year for the re-endorsement process
  • Formally by OCHA FIS when CODs are loaded or re-loaded to HDX.  These evaluations are reflected in the COD Dashboard (discussed below).


Evaluation criteria

CODs should be prepared for administrative level 0 (country), administrative level 1, and for additional administrative levels that are available and relevant.

CODs should be evaluated according to the established standard criteria (below) for comparability.  FIS uses a numeric scoring algorithm [to be documented later] that computes usability levels for each administrative level and overall.   (All administrative level 0 data, and the last evaluation Ecriteria groups ‘Link to COD-PS’ and ‘Link to COD-AB’ do not influence the usability evaluation.)

  • Fully usable:  The COD can be used for any purpose
  • Partly usable:  The COD has some problems that may limit its use
  • Needs improvement:  The COD is only useful for very limited purposes

COD AB Criteria

Metadata
Attribute structure
  • Is the COD-AB available on HDX?
  • Is the data public on HDX?
  • Is the date of the dataset indicated on HDX?
  • Is there a short but complete description of the dataset?
  • Is the data source clearly indicated and defined on HDX?
  • Is there any methodology or comments containing clarified information?
  • Is the file tagged as being a COD?
  • Is the COD-AB endorsed by IMWG?
  • Is the type of license/rights of use defined on the HDX website?
  • Are all the COD-AB files grouped as one unique entry on HDX?
  • Is there only one file per format per level? (e.g., only one SHP for each level)
  • Is the COD-AB attribute table also available as an Excel file on HDX?
  • Is the .CPG file present within the zip (when needed : AB names in arabic, russian, french, spanish)?
  • Is there a metadata file (txt) present with the COD-AB?
  • Is the zip naming convention followed?
  • Is the count of polygons different between sources (GDAM, Wikipedia) ? If yes put the number with the source in brackets and some eventual explanation in the comments
  • Are there names in all records?
  • Do the column names respect the naming convention?
  • Are all the names transcripted into latin script when required if other script is local language? (e.g., Latin script name included with Arabic name)
  • Is there a specific Excel file containing all the AB level units? (Excel - Gazetteer)
  • Do the lower admin boundaries have the higher admin boundaries in the shp ?
  • Are there any duplicate names within the level?



P-codes
Parentage
  • Are there names in all records?
  • Do the P-codes incorporate values from higher levels?
  • Are there any duplicate P-codes within the level?
  • Does each admin level have upper level P-codes? Is the hierarchy the same between levels?
  • Does each admin level have upper level names? Is the hierarchy the same between levels?




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