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Model Based Requirement - Coggle Diagram

- - - - How to use
        1)Recognize and define the system boundary
        2)Identify actor
        3)Identify use case
        4)Specifying use case
      - Pre & Post Conditions
        
        1)Pre and post condition are restricted
        2)Precondition must have been fulfilled before use case starts
        3)Post condition must be fulfilled if the use case ran successfully
        4) If no restriction given, this also to be documented
      - Relationship between use case
        
        1) Include
        -Use to extract use case fragment that are duplicated in multiple use case
        2)Extand
        
        is used when a use case adds steps to another first-class use case
    - - Activity diagram is another important behavioral diagram in UML diagram to describe dynamic aspects of the system.
        
        Activity diagram is essentially an advanced version of flow chart that modeling the flow from one activity to another activity.
    - - Also known as DFD, Data flow diagrams are used to graphically represent the flow of data in a business information system.
        
        DFD describes the processes that are involved in a system to transfer data from the input to the file storage and reports generation.
- - - - A state diagram is a type of diagram used in computer science and related fields to describe the behavior of systems
- - - - Domain Class
        
        Describe an object, a concept, a place or a person from the domain
      - Attributes
        
        Domain (data) item that is contained equally in every object of a class