Visual check is an informal methodology used in computing to verify the correctness of graphical output systems, computer displays and digital images. It is often used to check the correctness of information that is displayed on a computer screen or monitor, such as text, icons, windows, menus, images, and even colors. It can also be used to check the correct functioning of other components, such as user interfaces, input devices, and printer output.
Visual checking can be done manually or with software tools. Manually, it involves comparing actual output, such as text on the screen, with an intended output or design. The technician looks for any discrepancies, such as incorrect colors, incorrect spacing, wrong font, or corrupted images. Visual checking with software, on the other hand, involves technologies such as pattern recognition, image analysis, and artificial intelligence to compare the actual output to a design or set of required criteria.
The purpose of visual checking is to identify any anomalies or errors in an output system. It is especially useful when used in conjunction with other testing methods, such as exhaustive testing, automated testing, or testing using test scripts. Using visual checking can also help identify potential problems before they become more serious.
Visual checking is an invaluable tool used by software developers and IT professionals to ensure quality software products and services. It is essential for the continued success of any business or organization that relies on computers, as it can help identify problems before they become serious and reduce downtime.
