Companies often focus on developing applications with an objective to enhance their productivity, generate revenue as well as increase the margin of revenue by reducing operational cost. Developing applications is important but it is equally important to make sure the application is robust, reliable, safe and of high quality. Applications that are not robust and reliable can lead to high maintenance cost.
Hiring the best developers who write the best code does not mean the code written by them works in a way it is good for the users. Developer testing their own piece of code, module or the entire application is a good practice but highly unreliable since it is a clear conflict of interest. Getting the application tested by an independent QA engineer or team eliminates conflict of interest and is reassuring to clients.
At TechnoProverbs, the QA team is completely isolated from the development team in order to make sure they do get influenced by the development team in any way and create conflict of interest.