In an effort to ease the task of developing new ideas, whether in research, development or some other endeavor, it is generally accepted to resort to a method of problem solving. Although the use of such a method may, in many cases, be done without the realization of the individual, it does not detract from the fact that such methods play a part in our mental processes and research techniques. It is the purpose of this paper to discuss the methods and to arbitrarily classify them so that they can be consciously applied. Inasmuch as all methods must to some extent ultimately define the problem, the division presented here is obviously arbitrary, based on the degree of specificity with which the problem must be defined.