In the footsteps of Wilcock, Part one: The evolution of doing, being, becoming, and belonging.

This article will present a critical analysis of the four dimensions of occupation, doing, being, becoming and belonging, and propose clearer understandings of the terms. The concepts have developed and evolved since Wilcock first introduced them as main constructs of Occupational Perspective of Health (OPH), with doing and being receiving the most comprehensive development. However, the concepts of becoming and belonging remain underdeveloped. Given the complex nature of occupation, this comprehensive analysis of each dimension adds greater depth to our understanding, and provisional definitions of each term are provided to guide their ongoing development.