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Logical Data Model

Logical Data Model (LDM) / Entity / Dissemination Block

Project:

Dissemination Block
Appears In: Geography LDM Subject Area
An area bounded on all sides by roads and/or boundaries of standard geographic areas. The Dissemination Block is the smallest geographic area for which population and dwelling counts are disseminated. <br/>
  • Attributes
  • Associations To
  • Constraints
Attribute Type
Dissemination Block Code Codeable Concept
Notes: A coded concept that specifies a dissemination block.<br/><br/>Value set:<br/><a href="https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/Definition-eng.cfm?ID=geo014"><font color="#0000ff"><u>https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/Definition-eng.cfm?ID=geo014</u></font></a> <br/>
Geographic Boundary Polygon
Notes: The abstract lines or physical features that separate one place or area from another.<br/>
Geography Effective Date Date
Notes: The first date when the information specified is valid, which is generally the release date of a census.<br/>
Relationship Target Entity
grouped into   Dissemination Area
Constraint
Unique Key: Dissemination Area Code, Dissemination Block Code, Geography Effective Date