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Model Types (Modelling Perspective (The modelling of the different views…

- - - - What does the system do or need to do?
      - Data Flow Diagrams
      - Flowcharts
      - Jackson Structured Chart
    - - What data needs to be input, manipulated, stored and output?
      - Entity Relationship Diagrams
      - Hierarchical Tree Diagram
      - Bubble Diagram
    - - What triggers does the system react to?
      - Entity Life History
      - Statechart
- - - - A type of thing of interest to the business
    - - A link between classes
    - - Lowest level data item, a property of a class
    - - The functions that act on the attributes