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Unit 6: Computers - Coggle Diagram

- - - - i. Less implementation time (immediate implementation);
      - ii. Lower cost and cost is predetermined;
      - iii. Tested thoroughly – thus very reliable.
    - - i. Dependent on vendors for maintenance;
      - ii. Too general /inflexible to cater for needs;
      - iii. Change maintenance difficult/impossible;
      - iv. Written overseas (Vat and Tax differs).
  - - -  User requirements
      -  Reviewed by data processing department
      -  Documented