When we consider the various arguments for introducing adequate quality assurance/control and testing processes, no argument is more important than the one concerning the cost of debugging. The longer a bug is not detected, the more expensive it will be to fix it. A simple comparison of prices versus benefits will show that the benefits of hiring a QA Test Engineer to verify the code far outweigh the cost of this service.

What makes SQA and testing important is not limited to what has been said so far: it is ultimately about building a good reputation for developing quality products. Businesses prefer to pay more for high-quality, safe, and reliable products, and this is where the huge contribution of SQA and testing is. By guaranteeing the consumer that everything possible has been done for the high quality of software, you will be able to increase the consumer's confidence that the project will be completed within the pre-agreed time and budget. This is the key role of the SQA Test Engineer, as performing tests yourself is an unreliable way, and it is possible that situations may arise that will subsequently be classified as a "conflict of interest." Independence and impartiality, which are the SQA Test Engineer's hallmarks, are beyond doubt, and proving the independence of the tester is a key technique for gaining customer trust. Once you understand the importance of SQA testing, here are seven more reasons why it is important:

• SQA is the systematic and planned set of actions that ensures that the software and the processes of its creation comply with certain standards, requirements, and procedures;
• Processes cover entire activities in the design, creation, improvement, and handling of software;
• SQA covers associated data, software, its documentation, and overall support, as well as report forms;
• SQA covers strategies that ensure that procedures and standards are formed and strictly enforced during the development process;
• Standards are the principles that products must meet;
• Procedures are the principles that the development and control process must meet;
• Compliance with established standards, procedures, and requirements is measured through overall process monitoring, audits, product evaluation, and testing.

Some myths about the application of Quality Assurance are widespread. Here are the most popular of them and the consequences they can lead to:

SQA is just testing

Some people use the terms "testing" and "Quality assurance" as interchangeable. In practice, however, testing is only a small part of the entire SQA process, which includes the entire development process from the requirements definition to the maintenance process. It covers the various testing techniques and affects the processes, standards, documentation, and everything used during the development cycle.

SQA can be applied at the end

Many companies apply a testing policy to their products only when the development of a product has already been completed. This may sound reasonable at first glance, as it allows you to test and repair the product in its entirety, already completed. However, this is a risky endeavour, as working on the finished product significantly reduces the time that can be spent on testing and leads to unforeseen delays, hasty fixes, and the product itself to suffer. In addition, this method is ineffective compared to testing - large errors can go unnoticed. Keep in mind that it is always more economical to find and fix errors as early as possible in the development process instead of waiting for the product to be completed because at this stage, some errors may already be buried deep in the product code and not be considered in testing, but lead to significant problems with your product. Also, keep in mind that after the product is finished, the code in the minds of the programmers will no longer be as fresh as during development.