1. a set or system of methods, principles, and rules for regulating a given discipline, as in the arts or sciences.
2. Philosophy. a. the underlying principles and rules of organization of a philosophical system or inquiry procedure.
b. the study of the principles underlying the organization of the various sciences and the conduct of scientific inquiry.
3. Education. a branch of pedagogics dealing with analysis and evaluation of subjects to be taught and of the methods of teaching them.
To methodologize is to perform any of the above definitions.