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Mind map

ENTITY RELATIONSHIP MODELLING

Ainnur Syamimi English

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ENTITY RELATIONSHIP MODELLING

3 Basic Concepts of E-R Model
- entity type
  - strong entity
  - weak entity
- attributes
  - candidate key
  - composite key
  - primary key
- relationship type
  - weak relationship
  - strong relationship
Structural Constraints
- cardinality constraints
  - one to one relationship
  - one to many relationship
  - many to many relationship
- participation constraints
  - total (mandatory)
  - partial (optional)

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Description: Mind Map on ENTITY RELATIONSHIP MODELLING, created by Ainnur Syamimi on 01/05/2019.
Created by: Ainnur Syamimi
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