The mastery of relevant knowledge and the acquisition of a range of relevant skills at a satisfactory level including interpersonal, clinical and technical components at a certain point of education, such as at graduation. In the case of clinical training, which is primarily based on an apprenticeship model, teachers define what the student is expected to do and then test their ability to do it. However, in actuality, most clinical actions are concerned with problems for which there are no clear answers and no single solution. In such situations, an experienced doctor searches his or her mind and sifts through a wide range of options and in some cases the solution will be something he or she has never arrived at before. Therefore, competence itself is only of value as a prerequisite for performance in a real clinical setting and does not always correlate highly with performance in practice.