Solution:

Following are some types of maintenance based on their characteristics:

(1) Corrective Maintenance.

(2) Adaptive Maintenance.

(3) Perfective Maintenance.

(4) Preventive Maintenance.

(1) Corrective Maintenance:

Corrective maintenance is initiated when a problem is discovered while working on another work order.

This includes modifications done to fix the problem. Corrective maintenance deals with the repair of defects found in day-to-day system functions.

Corrective maintenance is then scheduled for a future date when the problem is repaired or replaced.

(2) Adaptive Maintenance:

This includes modifications applied to keep the software product up to date.

Adaptive maintenance is the implementation of changes in a part of the system, which has been affected by a change that occurred in some other part of the system.

(3) Predictive Maintenance:

Predictive Maintenance uses data from machine sensors and smart technology to alert the maintenance team when a piece of equipment is at risk of failing.

For example, a sensor may use vibration analysis to alert the maintenance team that a piece of equipment is at risk of failing, at which point it will be taken offline, inspected, and repaired accordingly.

This includes modifications done to keep the software usable over a long period of produce of period doses, and new user requirements for refining the software and improving its reliability and performance. This includes changing the functionalities as per the user’s changing needs.

(4) Preventive Maintenance:

Preventive maintenance is maintenance that is regularly and routinely performed on physical assets to reduce the chances of equipment failure and unplanned machine downtime that can be very costly for maintenance teams and facility managers.

Modifications to prevent future problems with software It aims to attend to problems, which are not significant at this moment but may cause serious issues in future.

It comprises documentation updating, code optimization, and code restructuring.