 Some of the authors who have proposed multicriterial demarcations have defended this approach as being superior to any mono-criterial demarcation. Hence, Bunge (1982, 372) asserted that many philosophers have failed to provide an adequate definition of science since they have presupposed that a single attribute will do; in his view the combination of several criteria is needed. Dupré (1993, 242) proposed that science is best understood as a Wittgensteinian family resemblance concept. This would mean that there is a set of features that are characteristic of science, but although every part of science will have some of these features, we should not expect any part of science to have all of them. Irzik and Nola (2011) proposed the use of this approach in science education.