It is likely for business that has been in service for a long time to be using legacy software. So as to suit the company’s needs, software has to be tailored and customized hence the name legacy software. Due to this, you’ll find that this software is key to the company’s operations and is very difficult to replace or update. It is also difficult to replace due to a number of reasons such as poor architecture, technology choice, poor design, lack of talent to maintain it among others. Nevertheless, it is highly recommended to do a software upgrade with new and better technologies that will make it less complicated and easier to maintain. The following are some guidelines that will be helpful in the process of upgrading legacy software for your business.
It is advisable for you to begin by determining which parts of the software are not needed anymore. You will definitely find these components because the software has been in use for a long time and some of the parts will not be needed anymore. The removal of these unnecessary components is recommended because it enables you to simplify the system which is a key development concept.
One of the main problems that legacy systems usually have is a lot of code that has not been organized in a specific manner. So as to handle this problem, it is advisable for you to separate your software into layers. The architecture you’ll be adopting shall involve three layers which at presentation, application and database layer. The best way to develop this system is with independence between these layers specified above.
There are many approaches and it comes to development and you will need to select one in this process. You will, of course, need to talk with your team so as to figure out which method they like the most. Agile software development is an approach that is being used today in most software development companies because of its efficiency. In this approach, you focus on one core piece of your software at a time and you’ll be able to debug it a little at a time.
At this point, it is recommended for you to research on modern development frameworks. There are many new programming languages and frameworks every year and this will be an opportunity for your team to familiarize themselves with them.
Developing the system modules is recommended in this process. In such a system, each of the major softer components shall be operating on their own. With such a development concept, the maintenance of the system shall be easier than it was before. Click here to read more about this topic.