Software Maintenance – A Complete Guide

The lifecycle of software does not begin and finish with development. Your software requires monitoring and maintenance even after it has been deployed. The makers must ensure that the software functions smoothly as long as it is operating and users are using its features. This is where software maintenance comes into play. This process guarantees that the software runs without error and prepares the system for future changes. Furthermore, it improves the software’s features and makes any necessary changes to improve the product. You may hire a software development company in the USA for more understanding.

Software maintenance has a significant impact on the development of your software. This article contains the following information that you should be aware of:

  • What is software maintenance, 
  • Why is it important, and 
  • What sorts of software maintenance are there?

What exactly is Software Maintenance?

Software maintenance is the process of changing a software product after it has been delivered in order to correct any flaws and improve performance or other features. It’s a stage in the Software Development Life Cycle. Because software is a replica of the real world, as the real world changes, the software must adjust as well, wherever possible. Optimisation, elimination of rejected functionality, mistake correction, and augmentation of existing functions are all part of software maintenance. Because these changes are critical, a framework for estimating, controlling, and making changes must be developed. During the development cycle, software maintenance must create an accurate plan. Closer to the higher pole, maintenance accounts for 40-80 percent of the project cost. As a result, focusing on maintenance reduces your costs.

The Importance of SDLC Upkeep

  • Fixing Bugs: The most important aspect of the service is fixing faults or “bugs.” The software must function flawlessly and this is a top priority. This procedure includes searching for and correcting flaws in the code. Problems can arise in hardware, operating systems, or any piece of software and they must be addressed without jeopardising the remaining functionalities of the present software.
  • Client Comments: Where else can you spot flaws in the feedback section? When it comes to issues and potential improvements, users are the best data source for a dedicated software development team. Clients will request new features or functions of your program over time. Remember that your program can become obsolete if it no longer offers anything new. When this occurs, clients may abandon your program in favour of better and more advanced software on the market.
  • Changes to the target host: The platform or device where consumers may install the program is referred to as the target host. New computers and mobile devices are released onto the market almost every year. Along with the updates, system upgrades may alter your software. As a result, you must make changes to ensure that your program is compatible with all operating systems and hardware.
  • Remove obsolete functions: When a function becomes obsolete owing to system changes, you must scrape it from the software. Unwanted features take up space in the solution. This circumstance may impair the performance of your application. That is why you should get rid of obsolete elements and replace them with fresh tools and technology. Software generally necessitates extensive reengineering. A software development company USA can be of great assistance here.

SDLC Maintenance Types

The nature of maintenance varies over a software’s lifetime. It could be a routine maintenance operation, such as a bug identified by a user or it could be a significant event in and of itself, depending on the size or nature of the maintenance. The following are some examples of maintenance depending on characteristics:

  • Maintenance of corrective software: It contains changes and upgrades to rectify or fix problems discovered by the user or concluded by user error reports.
  • Maintenance that is Preventative: It provides updates and adjustments to prevent future software issues. The maintenance tries to address minor flaws that may cause major difficulties in the future.
  • Perfective Software Upkeep: It involves adjustments and upgrades made to keep the software usable for an extended length of time. Furthermore, perfective maintenance incorporates new features and user needs to increase the software’s performance and reliability.
  • Maintenance that Adapts: It involves changes and upgrades made to keep the software product current and adapted to the ever-changing business environment and technology.

SDLC Maintenance | Cost

Factors Affecting Maintenance Costs in the Real World

  • The average age of software is thought to be 10 to 15 years.
  • Older software designed to run on sluggish machines with limited storage and memory cannot compete with freshly upgraded software running on contemporary technology.
  • As technology improves, maintaining outdated software becomes prohibitively expensive, especially if it is data-intensive.
  • Most maintenance engineers are inexperienced and rely on trial and error to solve problems.
  • The changes made readily harm the original software structure and make further updates difficult.
  • Changes are frequently left unreported, which may lead to additional issues in the future.

Software-end Factors Affecting Maintenance Cost

  • Structure of a software program
  • Language for programming.
  • Dependence on the outside environment
  • Employee availability and dependability


Software maintenance is not an option; it is required. For example, if you do not service your car, it might cause a slew of issues every year. The expense of poor car maintenance will be substantially higher. As a result, if system maintenance is neglected, there will be fewer opportunities for optimal business growth. In addition, software maintenance requires a well-trained team. Hence hiring a dedicated software development team will be the best option.