The ARCH Diagram

In 2020, I used the ARCH diagram to curate Alan P. Fiske's Relational Models Theory and Clay Spinuzzi’s typology of Activity.

The Evolution of Activity [Activity Theory]

Engeström tracked back human activity to the animal form of activity. He said, “A central tenet embedded in this model is the immediately collective and populational character of animal activity and species development (see Jensen 1981).”