Quality Assurance Engineer (QA Engineer) is the person responsible for maintaining and checking the quality of software products. Software quality assurance involves the process and means of evaluating the software quality and checking its working. It can also involve checking conformity to specifications, guidelines or models, like ISO/IEC 14443, ISO/IEC 9899 or CMMI.
The purpose of software quality assurance, or QA, is to assure that the products of a company or organization meet its business goals. It can also be used to ensure the compliance of the products with existing and future standards. This could be related to product functionality or it could relate to the quality, reliability, security and performance of a product or the business processes associated with the product.
There are two ways to identify the quality of software, either through the use of manual tools, or by the use of tools and techniques, including software tools and techniques, which can detect and check any defects in the code. Manual testing is time consuming and expensive and can easily detect defects in a product without thorough testing. The automated tool has more accuracy and faster results.
However, there is no need to wait for the final results before making an analysis of the quality. A good quality assurance engineer will conduct a comprehensive test of all software components to check their correctness, reliability, security, efficiency, compatibility and performance. A quality assurance test needs to include several aspects of software quality, like functional testing, technical test, quality test, reliability test execution.
The testing of software, like a traditional testing process, involves various steps, including testing of software architecture, testing of software source code, testing of software implementation and integration, testing of end-to-end product and system functionality, testing of end-user interface and integration with other products, and testing of application architecture and end-to-end integration of applications into the system. A software testing engineer has the authority to perform these tests under his supervision.
A test engineer should have knowledge and experience in both formal and informal testing methods, like design, validation, simulation, debugging, quality assurance, test management, software testing and test administration. He should also have experience in working with software vendors and in order to provide timely and effective software test results and to a project team.
A good test engineer has a comprehensive understanding of software testing and the techniques required to successfully complete testing. He should know how to apply testing techniques and methodologies effectively, in both the software . . . . . . and hardware testing, and the results and evaluation of software quality. In addition, he should have expertise in software system testing, in terms of both software system design and verification, and in performing software program verification and test cases.
A software quality assurance engineer has to understand the importance of the software testing activities, such as he must be able to identify any defect in the system. and must be aware of the testing process, in order to deliver software testing services that meet the requirements and expectations from the customer.