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system life cycle (analysis (interview: (ads: (sufficient knowledge,…

- - - - sufficient knowledge
      - improve relevant knowledge
    - - sometime there is no record
      - time consuming
  - - - cheap
      - easy to analyze
    - - dishonest answer
      - some question can be difficult to answer
  - - - Easy
      - Real and truth
    - - might not accurate
      - might take a lot of time to gather data
  - - - full detail and low cost
      - high accuracy
    - - time consuming
      - need storage
- - - - double entry
      - visual check
  - - - range check
      - length check