This document provides an overview of strategies for developing a workload model for hospital medicine programs. It discusses the importance of measuring physician workload and defines concepts like full-time equivalent (FTE). Both US and Canadian models for workload measurement are compared. The document outlines some of the underlying assumptions that workload models are built upon, such as how physicians divide their time between direct clinical care, care management, and other tasks. It notes that while these assumptions aim to be evidence-based, more research is still needed to validate the assumptions used in existing workload measurement tools.