The Practitioner's Cycles Part 1 illustrated ways in which actual world problems- the forces and constraints of procurement- are at odds with the goals of a human-centered approach. In Part 2, we presented an application of the Practitioner's Cycles model to envisioned world problems-the creation of intelligent technologies for new work systems. (See the "Synopsis of the Practitioner's Cycles" sidebar for a quick review.) This essay (Part 3) describes formative implementations of the Practitioner's Cycles. We propose the Practitioner's Cycles concept as a solution to the simultaneous problems of maturing new technologies and rapidly transitioning those technologies into new products.