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Requirement Engineering Process, Elicitation Techniques, Documentation…

- - - - Business goals
      - Problem to be solved
      - System constraints
    - - about organization
      - Existing Systems
      - application domain
    - - Goal prioritisation
      - stakeholder identification
      - Domain knowledge. filtering
    - - Stakeholder needs
      - organisational needs
      - Domain requirements
- - - - Communication : explains the domain and system
      - Contractual : legally binding, shows agreement and commitment
      - Baseline for evaluating the software
      - Baseline for change control
    - - Customers and Users
      - System Analysts
      - Developer
      - Testers
      - Project Manager
- - - - natural language is supplemented by tabular specifications
    - - Definition, inputs, outputs, evidence/source of information, action to be taken, pre and post conditions, side effects
- - - - Verfiability (realistically testable)
      - Comprehensibility (properly understood)
      - Traceability (origin is clearly stated)
      - Adaptability (easy to change)