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Applied Structured Systems Analysis

Introduction to Data Modeling

Segment Outline:

  • Create a preliminary Entity Relationship Diagram
    • Identify candidate fundamental entities from the Event List and create in the Visible Analyst
    • Perform normalization on a partial list of data elements defined in the Case Study
    • Match normalized data groupings to entities from the Event List and enter them into the Visible Analyst
    • Identify and create primary keys for the entities
    • Identify candidate attributive entities from the remaining data element groups
    • Identify and create primary keys for these entities
  • Refine the Entity Relationship Diagram
    • Check the assignment of data elements to the entities
    • Refine many-to-many relationships by creating associative entities
    • Create (or transform) an entity when one or more data elements describe the interaction of two or more entities

Click on the link below to view a short demonstration of the "Introduction to Data Modeling" video.

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Demonstration Video

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