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DATA & PROCESS MODELLING - Coggle Diagram

- - - - Tables with one condition - If a process has a single condition, there only are two possibilities – yes or no.
      - Tables with two condition - Suppose you want to create a decision table based on the Verify Order business process
      - Tables with three condition - First, you must fill in the Y-N patterns
        
        The first condition uses a pattern of Y-Y-Y-Y followed by N-N-N-N
        
        The second condition uses a repeating Y-YN-N pattern
        
        The pattern in the third condition is a series of Y-N
      - Table with multiple outcomes -In addition to multiple conditions, decision tables can have more than two possible outcomes.
      - Decision Tree - A decision tree is a graphical representation of the conditions, actions, and rules found in a decision table.
    - - Sequence- The completion of steps in sequential order, one after another.
      - Selection - The completion of one of two or more process steps based on the results of a test or condition.
      - Iteration - The completion of a process step that is repeated until a specific condition changes.
- - - - Data store symbol
        
        Represent data that the system stores
        
        The physical characteristics of a data store are unimportant because you are concerned only with a logical model
      - Data flow symbol
        
        Represent one or more data items
        
        The symbol for fata flow is a line with a single or arrowhead
      - Entity Symbol
        
        Name of the entity appears inside the symbol
        
        Shows only external entities that provide data to the system or receive output from the system.
      - Process symbol
        
        Receives input data and produces output that has a different content, form, or both
        
        Contain the business logic, also called business rules
        
        Referred to as a black box