Provost L, Bennett B. What's your theory? Driver diagram serves as tool for building and testing theories for improvement. Quality Progress. 2015 Jul:36-43.
The third question in the Model for Improvement asks, "What changes can we make that will result in improvement?" (i.e., the theory of change). This article provides a detailed description of the driver diagram — an indispensable tool for mapping out the theory of change. A driver diagram, applicable in many contexts, visually illustrates the structures, processes, and norms believed to require change in the system, and the specific change ideas that are anticipated will lead to improvement.