Software Engineering (2160701)

BE | Semester
  Summer-2018 | 04/28/2018

Q5) (c)Explain Software maintenance.

Corrective Maintenance

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

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

Perfective Maintenance

  • This includes modifications done in order to keep the software usable over long period of time
  • It includes new features, new user requirements for refining the software and improve its reliability and performance.
  • This includes changing the functionalities of as per the user’s changing needs

Preventive Maintenance

  • Modifications to prevent future problems of software
  • It aims to attend problems, which are not significant at this moment but may cause serious issues in future
  • It comprises documentation updating, code optimization and code restructuring.