Conceptual Modeling - Entities and Relationships

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• Allgemeines

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    Announcements Forum

• Link of the Week
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    "Design a Geodatabase" (watch this from a generic, broad perspective, no need to dig into details) Link/URL

• Slides
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    Design a relational model for the general case of adjacent polygons with the relations area (polygon), line, node and vertex. This is the simplest case of linked lists / tables. Aim at expressing these relations in a general notation.  

• Samples
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    Hydro Data Model Link/URL
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    Transportation Data Model Link/URL
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    OSM Database Schema Link/URL

• Tutorial Videos on ERD
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    Entity Relationship Diagram >Tutorial 1 Link/URL
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    Entity Relationship Diagram >Tutorial 2 Link/URL

• Learning Resources
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    UCGIS DM-34 - Conceptual Data Models Link/URL
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    ER Diagram: Entity Relationship Diagram Model Link/URL
  • ER-Tutorial

    UML - Unified Modelling Language
    http://ivs.cs.uni-magdeburg.de/~dumke/UML/
    http://www.omg.org/uml/uml_tutorial.htm
    http://www.sparxsystems.com.au/UML_Tutorial.htm
    further...
    https://www.lucidchart.com