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Entity Function Matrix – Putting It All Together

Entity Function Matrix – Putting It All Together. Northern College Diploma Philip Bird. Entity Model. Current Physical DFD. Problems and new requirements. Current Logical DFD. Required Logical DFD. Entity Life History. Required Physical DFD. Entity Function Matrix. The SSADM Route.

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Entity Function Matrix – Putting It All Together

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  1. Entity Function Matrix – Putting It All Together Northern College Diploma Philip Bird

  2. Entity Model Current Physical DFD Problems and new requirements Current Logical DFD Required Logical DFD Entity Life History Required Physical DFD Entity Function Matrix The SSADM Route Data Flow Modelling Entity Modelling

  3. Entity Function Matrix • Cross reference entities with functions. • List all entities from entity modelling. • List all functions from data flow modelling. • Mark the intersection with a Delete, Read, Modify, Create or leave blank. • In a full system all entities should have D, C, R/M entries.

  4. Place order Add new customer Get stock delivery Cancel order Customer 2 4 Product Order Customer 1 3 Supplier Order Processing DFD

  5. Customer Order Order line Product Order Processing Entity Model

  6. Place order Add new customer Get stock delivery Cancel order Customer 2 4 Product Order Customer 1 3 Supplier Entity Function Matrix

  7. Customer Order Order line Product Entity Function Matrix

  8. Entity Function Matrix R C M R D M M C

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