Software Maintenance and Re-engineering

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Software Maintenance and Re-engineering, Learn about Software Maintenance and Reverse Engineering Principles.

Software maintenance stands for all the modifications and updations done after the delivery of software product. There are number of reasons, why modifications are required:

  • Market Conditions – Policies, which changes over the time, such as taxation and newly introduced constraints like, how to maintain bookkeeping, may trigger need for modification.
  • Client Requirements – Over the time, customer may ask for new features or functions in the software.
  • Host Modifications – If any of the hardware and/or platform (such as operating system) of the target host changes, software changes are needed to keep adaptability.
  • Organization Changes – If there is any business level change at client end, such as reduction of organization strength, acquiring another company, organization venturing into new business, need to modify in the original software may arise.

In a software lifetime, type of maintenance may vary based on its nature. It may be just a routine maintenance tasks as some bug discovered by some user or it may be a large event in itself based on maintenance size or nature. Following are some types of maintenance based on their characteristics:

  • Corrective Maintenance – This includes modifications and updations done in order to correct or fix problems, which are either discovered by user or concluded by user error reports.
  • Adaptive Maintenance – This includes modifications and updations applied to keep the software product up-to date and tuned to the ever changing world of technology and business environment.
  • Perfective Maintenance – This includes modifications and updates 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.
  • Preventive Maintenance – This includes modifications and updations to prevent future problems of the software. It aims to attend problems, which are not significant at this moment but may cause serious issues in future.

In this course, we will learn about software maintenance and re-engineering.



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