Chapter 5, "Problems with Method," from Norman Potter's handy volume What is a designer (1969, 1980, and 2002) actually speaks to what may be essential values of methodology's use in the design process. The following are not directly stated; instead, I am proposing them quickly after having studied the chapter.
1. Methodology obtains optimum solutions much more frequently than non-methodological means.
2. Methodology is especially useful when the problem's complexity and intricacy require objective and deep thinking.
3. Methodology is to be favored over the genius of ego in many situations because methodology accommodates a greater variety of personalities and reduces the abuses perpetuated by ego.
4. Methodology is not as limited in its arsenal of strategies as one might think. Methodology can utilize many of the strategies employed by the intuitive and insightful ego.