... have been told that we do not need to do these stages of design. However if I were to document the whole system I would use the system life cycle, as it helps designers approach the design in a methodical way. I have shown the life cycle below: 1. Problem Definition - the problem will be defined by the user 2. Feasibility Study - investigate the system and decide if there is need for a new system 3. Analysis - analyse the requirements and produce a specification 4. Design - the design is produced 5. Construction 6. Testing - system is fully tested 7. Implementation - system implemented and users trained 8. Maintenance - there are three types of maintenance: a. Perfective maintenance, where you make the system easier to use or you add new facilities b. Adaptive maintenance, where you make changes to suit the changes in working environment c. Corrective maintenance, where you change something ...

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