Involves day-to-day operation of the system, making modifications toimprove performance, and correcting problems. After an informationsystem is implemented, it remains in operation for a period of time. Duringthis time, maintenance activities ensure that the system functions aswell as possible. There are a list of activities for this phase:
3. Provide help to users.
5. Optimize for speed and security.
6. Revise software as necessary tomeet business needs.