The legacy application is a vital part of every business. However, they are not as easy as they look because of multiple workarounds growing over the years. These applications require significant investment.

According to the latest research, governments use at least 80% of their IT budget to maintain existing legacy systems. This is to tell you that legacy software or applications can hinder a company’s digital transformation because of its inability to get new features and incapability to harness new technologies.

Software reengineering is one of the easiest ways to mitigate issues with legacy applications, in this article, how software reengineering can fuel change, how to organize a working reengineering process, why these activities are essential, the possible risk of reengineering, and what software reengineering means.

What exactly is software reengineering?

Software Reengineering is the alteration and examination of a system to work in a new form. When the principle of reengineering is applied to the software development process, it is called software reengineering. This reengineering positively affects software cost, service to the customers, delivery speed, and quality. In Software Reengineering, the software is improved to make it more effective and efficient.

The need for software reengineering has become an essential part of improving the quality of your products. This value will be added to your business as a custom software development firm as it will make your services better and add to your revenue.
Software reengineering is an effective method for software development that allows you to discover unnecessary elements implemented in your software and remove them from the system.

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The starting point of the reengineering project is the reverse of the existing system. Currently, software development agencies and business analysts restore the lost info about application design.

How Software Reengineering is Done

Software Reengineering undergoes three main phases, which are;

Reverse Reengineering

Held Back by Legacy Software? Reengineering Can Help to Fuel Change

Reverse Engineering is dismantling an object to see how it works. This is done by analyzing and learning how something works and is used to duplicate an object. Many things can be reverse-engineered, such as software, military technology, and physical machines.

The practice of how reverse engineering is done is that it is applied to computer hardware, and software is taken from older industries. It focuses on a program’s machine code. This program machine code is used to turn the machine code back to the source code.

This software reverse engineering is done by thoroughly analyzing and inspecting the system specifications and understanding the process. Reversing the software development lifecycle of software implementation is the best fit for this procedure. It unravels each layer from a higher level to a lower level.

Restructuring Reengineering

Held Back by Legacy Software? Reengineering Can Help to Fuel Change

Once reverse engineering is done, then the next step is restructuring. Restructuring engineering deals with reconstructing the source code and deciding whether to retain programming conventions. Yet, this doesn’t have any impact on the software. Instead, this process helps to enhance them for more reliable performance.

Forward Reengineering

Held Back by Legacy Software? Reengineering Can Help to Fuel Change

The flow ends at forwarding engineering. Integrating the latest specifications is based on reverse and restructuring engineering results. Concerning the whole process, this process also looks like that of reverse engineering, where there is an effort to build backward from a coded model. This process of reengineering has principles in different software and database processes.

In essence, forward engineering is significant in IT because it represents the standard development process.

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When there is a need for a software reengineering process

The software reengineering process will be appropriate over legacy software in the following cases:

1. When the programming language is no longer supported

The reengineering process will be appropriate for patches for bug fixing and security updates. Also, there are lost option options for integration with a third-party app developed by a mobile app development agency through modern APIs.

2. There is a drastic change in technology

A situation where more successful advanced alternatives are replacing old technology is common in IT. So, the market is evolving, and if you want your company or business to keep up with technology, the reengineering process is essential.

3. Business processes in the company are changing

Software reengineering will be helpful in your business because business processes are changing. For example, if the product was confined to the ideal solution of a limited number of tasks, it will be necessary to make changes to software, which is if most of them are to be changed.

4. If the software is initially poor

This sometimes happens because of excessive saving at development. When the company’s performance does not work well enough, it will influence business processes, and reengineering will help you achieve this quality product.

Observed Benefits of Reengineered Legacy Systems

At some stage, every organization is faced with the choice of creating a system from scratch or upgrading an existing one. In most cases, it is software reengineering process is the best choice because it provides various significant advantages:

Enhancement of Productivity

Business process reengineering helps businesses focus on automating many repetitive elements with business workflow. This process includes removing process bottlenecks, initiating parallel processing, and eliminating redundant steps. These can only be achieved easily through business process reengineering, allowing your employee and staff to spend more time on essential activities. Once the reengineering process handles the support function, it can increase productivity and reduce waste.

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Reduced Risks

Another benefit of reengineering in fueling change is concentration on inefficiencies. It will help your business work more efficiently and help your employees save their resources. This reengineering is also responsible for creating a well-designed and monitored process that helps reduce risks like fraud.


There are some industry regulations you need to comply with. But the business process reengineering, your organization will remain transparent, and you will be able to implement the regulatory requirements at ease. When you integrate compliance into this process, you have automatically made your company process transparent and visible to all your employees.

Employee Contentment

Business process reengineering removes any form of doubt from your employee and allows them to be 100% focused. This process automation helps eliminate repetitive work, makes access to information more accessible, and has a happy workforce.

Improved Customer’s Attention and Satisfaction

When there are simplified processes and increased productivity, your employee will have enough time to focus on customers. Your employee is best positioned to respond to customer proposals and build solutions faster.

With simplified processes and increased productivity, employees get enough time to focus better on the customer. The employees will be better positioned to respond to customers’ proposals instantly. The benefit of reengineering the legacy system is that it brings people and technology together to increase customer satisfaction.


Reusability, maintainability, and portability are characteristics of good software. Custom software developers understand this, and it provides the best customer experience and eases the work of developers.

Due to the extensive experience in legacy software reengineering, forty-seven have fortyseven software professionals who help organizations attain their business goals. Hanna Shnaider is great at what she does. She helps to keep the core elements of the legacy software intact, optimize the performance and newly required functionalities.


Ruby has been a writer and author for a while, and her content appears all across the tech world, from within ReadWrite, BusinessMagazine, ThriveGlobal, etc.

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