
What is Software Quality Assurance and why it is important?
Software Quality Assurance is an essential part of software development life cycle (SDLC). As we know that every developed software has bugs, because it is impossible to design the perfect product. However, when SQA was not the part of SDLC in early 1990’s the overall quality of product was not good. But things began to change dynamically in between 1990 and 2000 then SQA became final step before delivering product to the customer.
Quality Assurance vs Software Testing:
Quality Assurance is improvement in Development Process of Software. QA uses tools and metrics to monitor these processes. While Software testing is just finding bugs/issues in a product and check whether actual results are matching with expected results or not. Software testing also helps to identify errors, gaps or missing requirements in contrary to the actual requirements. Once tester is done with testing he reports results to SQA Engineer.

Why QA is Important :
QA Analyst usually hears questions like “Why QA is important ?” or “Developer can also do testing” Answer is : Developer is only stick to requirement of product, he/she is not thinking about all possible outcomes of software. He/She has many other things to keep in mind while developing software. For this, QA will be responsible to see product from all aspects and write test cases for all possible outcomes of product. While developer is developing the product, QA Will start brainstorming and write test cases of all possible outcomes. And at the end QA will run these test cases on build.
One of the main important role of QA is to show Software development team’s effort to the client. Suppose Developer builds software and not handle all possibilities and deliver it to client without testing, and then client randomly check the product if product crashed or didn’t give output as expected then client will become angry on Software developer or on product manager.

Because Client only see the output of the program, he doesn’t know the actual effort of Software development team on it.

So, to show the effort of the whole software development team, QA plays a very important role in delivering the right product to customer so that customer should be happy and get expected results .Behind each successful and high-quality product, there’s a team of professionals who work on maintaining and improving its quality standard and serving a kind of guard against bugs and defects to stop them from getting to users. Companies like Google, Yahoo and Facebook etc with high-quality products, have a team of professionals who work on improving and maintaining quality standards and serving as a kind of guard.
