System maintenance involves servicing and improving an information system throughout its lifetime. It consists of types of maintenance such as corrective, adaptive, perfective, and preventive maintenance. Corrective maintenance refers to repairs made to fix defects, adaptive maintenance modifies a system in response to environmental changes, perfective maintenance improves performance after delivery, and preventive maintenance avoids future problems. Conducting maintenance requires managing costs, configurations, teams, and requests.

1. AKASH KUMAR
BCA2020060

2. System maintenance
 Involves servicing.
 Maintaining and improving
functional information system
through its lifetime.
 System operation and support
occur in parallel.

3. TERMINOLOGY:
1. Configuration management
2. Corrective maintenance
• .
4. Perfective maintenance
3. Preventive maintenance
5. System maintenance
6. System support

4. SYSTEM
MAINTENANCE
CONSISTS OF
FOLLOWING
SECTIONS:
Types of maintenance
Conducting and
managing maintenance

5. TYPES
OF
MAINTENANCE
 Corrective Maintenance
 Adaptive Maintenance
 Perfective Maintenance
 Preventive Maintenance

6. CORRECTIVE
MAINTENANCE REFERS TO
CHANGES MADE TO
REPAIRS THE DEFECTS IN
THE DESIGN, CODING OR
IMPLEMENTATION OF THE
SYSTEM.
Corrective Maintenance

7. Adaptive
Maintenance
ADAPTIVE MAINTENANCE
REFERS TO MODIFYING A
SYSTEM IN RESPONSE TO
ENVIRONMENTAL CHANGES.

8. PERFECTIVE
MAINTENANCE
MODIFICATION OF A
SOFTWARE PRODUCT
AFTER DELIVERY TO
IMPROVE PERFORMANCE
OR MAINTAINABILITY.

9. PREVENTIVE
MAINTENANCE
CHANGES ARE MADE IN
ORDER TO AVOID FUTURE
PROBLEMS AND REDUCE
THE SYSTEM FAILURE.

10. CONDUCTING AND
MANAGING
MAINTENANCE
 Cost of Maintenance
 Configuration Management
 Maintenance Team
 Managing Maintenance
Request