Q16.Marks: +2.0UGC NET Paper 2: Computer Science 2020
Modifying the software by restructuring is called
1.Adaptive maintenance
2.Corrective maintenance
3.Perfective maintenance✓ Correct
4.Preventive maintenance
Solution
The correct answer is option 3.
Key Points
Corrective, adaptive, perfective, and preventive maintenance are the four forms of maintenance.
Corrective maintenance focuses on resolving issues that arise when the programme is in operation.
Adaptive maintenance is concerned with the changes made to the software in order to make it adaptable to new environments, such as running it on a new operating system.
The term "perfective maintenance" refers to the changes in the software that occur as a result of adding new features.
Preventive maintenance entails making adjustments to avoid mistakes from occurring. The following graph shows the distribution of maintenance types by type and percentage of time spent.
∴ Hence the correct answer is Perfective maintenance.
