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Structured entity relationship model

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The SERM (Structured Entity Relationship Model) is an amplification of the ERM which is commonly used for data modeling. It was first proposed from Prof. Dr. Sinz in 1989. The SERM is commonly used in the SAP-world for the data modeling.

Aims

  1. structuring of large schemes
  2. visualization of existence dependency
  3. avoidance of inconsistencies
  4. avoidance of unnecessary relationshiptypes

SERM-Symbols

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