Software Maintenance

The modification of a software product after delivery to correct faults, to improve performance or other attributes, or to adapt the product to a changing environment.

Classifications of Maintenance
Maintenance costs

Classifications of Maintenance

Perfective maintenance
- Changing a system to make it meet its requirements more effectively.
Adaptive maintenance
- Changing a system to meet new requirements.
Corrective maintenace
- Changing a system to correct deficiencies in the way it meets its requirements

Maintenance Costs

Non-technical factors	Technical factors
Application domain Staff stability Program age External environment Hardware stability	Module independence Programming language Programming style Programming validation Documentation Configuration Management

Prepared By (Your name), from Section (Your section), at Uniten