What are the types of software maintenance?

[deepika-rajput-a9c8e139 (Deepika Rajput)]

What are the types of software maintenance?

[anik-acharjee]

There are four (4) types of Software Maintenance. They are :-

1. Adaptive Software Maintenance.
2. Corrective Software Maintenance.
3. Perfective Software Maintenance.
4. Preventive Software Maintenance.