What's Your Idea of a Mental Model?
http://www.boxesandarrows.com/archives/whats_your_idea_of_a_mental_model.php

McDaniel, Scott M.
Boxes and Arrows
2003

Abstract:

We need a way to document and express mental models that is as simple and robust as personas for user profiles and scenarios for tasks. By laying out users' current mental models and a target mental model, we can clarify our thinking and communication about the user interface's objects, metaphors, and interaction.