This document discusses task modeling and how it can be used to design interactions that fit with how people naturally work. It describes task modeling as understanding the steps users take and decisions they need to make to accomplish a goal. The document also discusses different types of research that can be done, such as observing users in their natural environments or listening to call center interactions, to understand user behaviors and needs. Finally, it provides examples of three common types of behaviors - direct connections, controlled evaluations, and complex evaluations - that should be supported in design based on task modeling research.