A major aim of using quality criteria (e.g., completeness, understandability, agreement) in requirements validation is to be able to check requirements systematically (see Requirements Engineering – What Is It?). In order to assure an objective and consistent validation, it is necessary that each quality criterion is concretized and refined. In correspondence with the overall goals of the requirements engineering process, the validation is carried out with the following goals:
Content: Have all relevant requirements been elicited and documented with the appropriate level of detail?
Documentation: Are all requirements documented with respect to the predetermined guidelines for documentation and specification?