Chapter 3 attempts to construct a new model of problem solving using the concept of pragmatism for routine theory that takes a processual approach. First, it points out that there are four obstacles to conventional routine theory when trying to take a processual approach: (1) dualism, (2) a variance-based theory of learning and organizing, (3) temporal problem, and (4) micro-macro problem. It then takes three of the concepts of pragmatism, habit, inquiry, and conversational trans-action, applies them to the problem-solving process, and builds a model based on a processual perspective. In Chapter 2, however, it is said that an essential element in adopting a processual approach is to view patterning and performing as inseparable. This means that only when the elements of the two actions are combined can it be called a processual theorization of routines. The discussion in Chapter 3, then, can be regarded as an elaboration of performing only, which is insufficient as a processual theorization of routines and requires further theoretical development.