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Computer Programming

Software Reengineering

Software Re-engineering is a software development technique that aims to make a software system more maintainable. Re-engineering is the process of examining and altering a system in order to reassemble it in a new form. Reverse engineering, forward engineering, rebuilding, and other sub-processes are all part of this process. Software reengineering is essentially the process of upgrading software. This procedure includes adding new features and functions to the programme in order to make it better and more efficient. In terms of the definition, this method also implies that the software product will be easier to maintain. As a result, reengineering is a step in the direction of ongoing software improvement for improved development and customer experience. It's also a technique to increase the performance of existing items.
Objectives of software re-engineering
● To define a cost-effective system evolution alternative.
● The purpose of this document is to outline the actions involved in the software maintenance process.
● To describe the issues of data re-engineering and to distinguish between software and data re-engineering.

Why do you need software re-engineering?

Reengineering software becomes a necessary component of increasing the quality of your goods. This procedure offers more value to your company because it not only improves your services but also generates additional money. Software reengineering is a low-cost software development approach. Why? This procedure helps you to identify and eliminate unneeded parts from your present programme. This reduces the expenses (time, money, direct, indirect, and so on) that are incurred. If a customer demands more features for a product you currently have, you may just need to re-engineer the existing one to improve production efficiency.

When you require software re-engineering

● When the programming language is no more supported
Upgrades, bug fixes, and security upgrades are no longer available, leaving the app vulnerable. Also, with contemporary APIs, there are fewer choices for integrating with third-party systems.


● Technology is changed drastically
In IT, it's not uncommon for a promising technology to be supplanted by more successful and sophisticated alternatives. The market is always changing, and reengineering becomes a requirement if a firm wants to stay current with technology.


● Change in business process
If the product was designed to be the perfect answer for a small number of activities in well-defined processes, it may be essential to make software modifications, assuming that the majority of them are to be altered.


● Software needs upgradations
This might occur as a result of an attempt to save money on development or the employment of inexperienced performers. If the current solution is limiting the company's performance and not performing well enough, it has an impact on business processes, and reengineering may be able to assist create a higher-quality product.

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Benefits of software re-engineering

● Get customer experience
Only when a product or service is in use can it be evaluated. Testing techniques, of course, are designed to do this. However, real-world use cases are the only way to see the true difficulties. On mobile payment applications, for example, we had to manually input OTPs. However, if the phone is already unlocked, it must be in the owner's possession. As a result, auto-filling OTPs in the appropriate fields will not constitute a security risk. To implement this functionality, makers of mobile payment apps re-engineered the codes. For users, the applications are now functional and productive. As a result, the customer experience increases.
● Safes your time
Rather than beginning from over, the existing solution is simply ported to a new platform, preserving all business logic.
● There is no risk involved
Rather than starting from scratch, the existing solution is simply transferred to a new platform while all business logic is preserved.
● Good for cost-cutting
Iterative development is used to create software. The first step of software development include creating basic system features such as user administration, payment systems, and so on. Additional features, such as analytics and recommendation systems, are introduced later. Building the fundamental systems is a time and money demanding task. They are the software architecture's foundational systems. The basic systems are already in place in software re-engineering, and only minimal changes are required at that stage. As a result, the total cost of the software development project will be substantially lower.

Benefits of software re-engineering

● Forward Engineering:
The present software is used in forward engineering. The programme is then rebuilt as a new system by migrating to a new architecture and platform in order to improve overall behavioural qualities such as performance, recovery, and reliability. Some new capabilities and features may be added to the programme as a result of the process, but the SRS, which is supplied by the new design, will stay the same.
Forward engineering is the process of converting a traditional system design to an object-oriented system design so that it may be incorporated into a new set of applications.

● Reverse engineering
In reverse engineering, the programme is deconstructed or fragmented into bits and components in order to fully comprehend its design, architecture, and use. We can improve the software even more now that we have better knowledge. In reverse engineering, the software is disassembled and evaluated for possible improvements. Using improved technology, design, techniques, and tools, the reverse engineering process identifies issues, obstacles, and places for improvement. Overall, the goal of this software development method is to increase a software
system's maintainability. Re-engineering is the process of examining and altering a system in order to reassemble it in a new form, which is critical for employees in today's digital society.

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