Enhancements are a vital aspect of Application Maintenance. We enhancement management under 2 broad methodologies, namely Change Request based enhancements and Release based enhancements.

Change Request based enhancement methodology involves the following mile-stones:

• Analysis of Change Request
• Impact Analysis
• Implement and test change locally through Unit Testing and regression testing
• Release to Production

Release based maintenance enhancement methodology involves the following mile-stones:

• Develop release plan jointly with the customer
• Implement and test bug fixes and enhancements locally
• Bring under Configuration Management
• Do Integration and Regression Testing
• Update the version control
• Production Release.