1. System Analysis and Design Copyright © Genetic Computer School 2007 SAD14-1 CHAPTER OVERVIEW  Overview Of System Maintenance  Tasks Performed During Maintenance Of The System  Types Of Maintenance  Risk Management

2. System Analysis and Design Copyright © Genetic Computer School 2007 SAD14-2 OVERVIEW OF SYSTEM MAINTENANCE Maintenance deals with the modifications made to a project's requirements over its lifetime to reflect changing needs. The system's environment will change and errors undiscovered during system validation may emerge.

3. System Analysis and Design Copyright © Genetic Computer School 2007 SAD14-3 TASKS PERFORMED DURING MAINTENANCE OF SYSTEM(1)  Revise Project Schedule  Acquire and Document User Feedback  Identify The Components Needing Maintenance  Identify Type Of Maintenance required  Create A Maintenance Schedule  Produce A Maintenance Budget  Perform The Maintenance, Incorporating The Code and Unit Testing phases

4. System Analysis and Design Copyright © Genetic Computer School 2007 SAD14-4 TASKS PERFORMED DURING MAINTENANCE OF SYSTEM(2)  Document The Maintenance Process According To Standards  Revise All Documents Relevant To Components  Define Customer Support Strategy

5. System Analysis and Design Copyright © Genetic Computer School 2007 SAD14-5 TYPES OF MAINTENANCE  Perfective  Corrective  Adaptive

6. System Analysis and Design Copyright © Genetic Computer School 2007 SAD14-6 RISK MANAGEMENT  Protection Of Data  Installation Of Redundant Data reorder  Installation Of Redundant System