Short Course on – Getting to Square 1
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Guidelines on How to Do an Upgrade on Legacy Software for Your Business
Legacy software is usually common specially for businesses that have been around for quite some time. One thing about legacy software is that it is usually custom developed for the company. This is arisen as to why legacy software is usually key to the operations of a company and makes it difficult to do a replacement or an upgrade. Some other reasons why you find it difficult to update legacy software include architecture, technology choice, poor design among others. Despite these difficulties, it is still important to update the software because there are new and better technologies out there that will make it less complicated and more maintainable. The following are some guidelines that will be helpful in the process of upgrading legacy software for your business.
The first step is to figure out which components are unnecessary. Since the software has been used in the company for a long time, there are huge chances that some of it is not 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 key challenges that are experienced by legacy systems is a large code base that has its logic combined. The best way to deal with this challenge is to develop an n-tier architecture which involves separation of the software into layers. These layers include the presentation, application, and the database layer. The best way to develop this system is with independence between these layers specified above.
The next step in this process is to choose a development approach to use. Ensure that you hold a discussion with your team members so as to be able to figure out the best approach to use. Agile software development is an approach that is being used today in most software development companies because of its efficiency. In this approach, you work on one piece of software at a time which also involves debugging it.
At this point, it is recommended for you to research on modern development frameworks. This will enable your team to update their knowledge and become familiar with languages and frameworks that they can use when developing the system.
The last step you need to take in this process is to ensure that you develop a system that is modular. In a modular system, each of the software components work independently. This enables effective maintenance of the system. Check out this link for more info.