software maintenance process

software maintenance process

1. the modification of a software product after it has been delivered (to users or customers)

   • in order to correct defects, improve performance or other attributes,
     • or adapt it to a change in the environment.

2. identification and classification of the problem

   • Identify the problem
   • Classify the problem by type of maintenance.
   • Assign priority.
   • Obtain approval of the request for modification and the tasks to be carried out.

3. analysis

   • evaluate the impact
   • evaluate costs
   • study the feasibility and scope of the modifications
   • Develop test strategy

4. Design

   • Determine objects to be modified.
   • Generate test cases.
   • Obtain a revised list of modifications.
   • Generate basic guide to the updated design
   • Get updated test plans.

5. Implementation

   • Develop and test the modifications made
   • Encode and generate unit tests.
   • Integrate the modified software with the system existing.
   • Review the preparation for the tests.

6. System tests

   • Perform tests on the modified system.
   • Review integrity.
   • Obtain approval.