Building a system can be broken down into six core activities.
Systems analysis
- Analysis of problem to be solved by new system
- Includes feasibility study
- Establishing information requirement
- Faulty requirements analysis is leading cause of systems failure and high systems development cost
Systems design
- Describes system specifications that will deliver functions identified during systems analysis
- Should address all managerial, organizational, and technological components of system solution
Programming
- System specifications from design stage are translated into software program code
Testing
- Ensures system produces right results
Conversion
- Process of changing from old system to new system
- Requires end-user training
- Finalization of detailed documentation showing how system works from technical and end-user standpoint.
Production and maintenance
- System reviewed to determine if revisions needed
- May include post-implementation audit document
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