Xsosys is a Singapore-based software, web, and mobile app development business. With an emphasis on software product development, specialized corporate business solutions, and offshore development, we provide end-to-end IT services. Software is tested before being made available to the general public or targeted users. Software testing is essentially done to observe how the program functions under various circumstances based on its intended use. Testing is done to determine whether the program functions correctly or not at all. Every test can be used to examine the functionality of the software at a certain stage. Users may get dissatisfied with subpar performance or quality, which may require further work on the software's design.