Interaction Modeling: User State-Trace Analysis
http://www.boxesandarrows.com/view/interaction_modeling

Queen, Matt
Boxes and Arrows
2006

Abstract:

Interaction modeling is a good way to identify and locate usability issues with the use of a tool. Several methods exist. Modeling techniques are prescriptive in that they aim to capture what users will likely do, and not descriptive of what users actually did.