A clear statement of what the candidate must achieve in order to be deemed successful in an assessed task, assignment, or examination. The criteria will normally specify what areas of knowledge, skills, and understanding must be demonstrated, and to what level. They are often used as a way of breaking down the learning outcomes or objectives into more detailed and specific guidance for the student, and may be used by the teacher or assessor as a checklist when marking or assessing. When assessment feedback is given to the student, either written or spoken, it should be related to the performance criteria in order to convey clearly where these have and have not been met. The use of performance criteria was integral to the original General National Vocational Qualification, and was seen by some academics and teachers as being very closely related to the use of statements of competence.