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Requirement Engineering - Coggle Diagram

- - - - client managers
      - system end - users
      - client engineers
      - constractor manager
      - system architects
  - - - system ent-user
      - client engineering
      - system architects
      - software developers
- - - - may be high-level statement of what the system should do
  - - - product requirenment
        
        usabiltiy
        
        Efficiency
        
        performace
        
        space
        
        dependability
        
        security
      - organization
        
        Environment
        
        Operational requirenment
        
        development
      - External requirenment
        
        Regulations
        
        Ethical
        
        Legistative
  - - - understandability
      - implicitness
- - - - standard format
      - language in consistent way
      - use highlighting
      - avoid the user oc computer jargon
      - include and explanation
    - - Definition of funciton
      - input : input from
      - output : output where
      - information (data) need to the algorithum
      - action to be taken
      - pre and post condition
      - side effects
- - - - dont know about what they really need
      - express requirement in their own terms
      - stakeholders may have conflicting requirement
      - organizational and political factors may influence the system requirement
    - - discovery
        
        The process of gathering information about the required and existing systems and distilling the user and system requirements from this information
      - classification and organization
      - requirement prioritization
      - requirement specificaiton
  - - - validity
      - consistency
      - completeness
      - realism
      - verificability
      - techniques
        
        reviews
        
        prototyping
        
        test case generation
  - - - requirenment identificaiton
      - a change management process
      - traceability policies
      - tool support
    - - problem analysis and change specification
      - change analysis and cost
      - change implimentation