When talking about QA, we refer to Quality Assurance, who is the person in the projects in charge of making sure that everything is being developed without errors and with the required quality.
The term QA Automation refers to the process of automating this task, using different tools and software to achieve it. This process guarantees the quality of the projects under development, as well as freeing up the human staff to be able to focus on the most important details of the application or product.
Test automation handles many of the time-consuming tasks previously performed by manual testers. It is especially useful for continuous integration and delivery, where software is developed, tested, and deployed multiple times per day, rather than in stages.
The main difference between the two processes is that a QA person follows a pre-written plan, informing developers of any bugs they find, while an automated QA test uses special tools for this and generates results after the test is complete.
There is the particularity that both methods can be used at the same time, each one focused on a specific part of the project. For example, a manual test is ideal for analyzing the user experience and appearance of the application, while automated QA is preferable in large-scale software tests as it saves time, especially in regression tests.
An advantage that automated QA has is that the test process and scripts are reusable, this is helpful for repeated test execution and successive development cycles. Automated tests can also run 24 hours a day.
Improves the quality of the final product
The automated test is more effective than a manual test, so the quality of the final product increases. By automating quality control, the company also broadens the coverage of the process, touching every aspect of the product. QA teams can now run thousands of automated test cases at the same time and across multiple platforms and devices.