SYSTEM LIFE CYCLE

SYSTEM LIFE CYCLE

1. DOCUMENETATION

   • - Program Spec - Trouble Shooting - Security Details - How to use the system Documentation also includes technical documentation

2. ANALYSIS

   • During the analysis stage systems analysts investigate the existing system to identify exactly what the problems are with the existing system

3. DESING

   • Alternative possible solutions are identified, alternative solutions evaluated, the best solution is identified, A design specification is produced containing information about: Input Output Data storage User interface Backup and recovery procedures Security procedures

4. development and testing

   • when a programmer, network engineer and/or database developer are brought on to do the major work on the project. This work includes using a flow chart to ensure that the process of the system is properly organized.

5. SYSTEM LIFE CYCLE DEFINITION

   • The system life cycle is a series of stages that are worked through during the development of a new information system. A new system is much more likely to be successful if it is carefully planned and developed.

6. IMPLEMENTATION

   • this phase involves the actual installation of the newly-developed system. This step puts the project into production by moving the data and components from the old system and placing them in the new system via a direct cutover. the cutover typically happens during off-peak hours, thus minimizing the risk.

7. EVALUATION

   • Evaluation should be done for end user and prject development team. - Feedback for the project team is important so that they can improve next time they start a project. - The end user will want to know if the project was worth it.

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