Validity Checking

Validity checking is the process of ensuring that data, inputs, or information adhere to specific rules, standards, or criteria before being accepted or processed. It helps verify that the data is accurate, complete, and appropriate for its intended use. For example, validating a phone number confirms it follows the correct format, and checking survey responses ensures they are within acceptable options. This process reduces errors, improves reliability, and maintains the quality of information, which is essential for making sound decisions or functioning properly within systems.