- Mental model theory suggests that the mind constructs "small-scale models" of reality to understand situations. Mental models can be based on perception, imagination, or comprehending language. They resemble pictures and can represent tangible or abstract concepts. - Mental models have a structure analogous to what they represent. Critics argue the mind uses inference rules rather than models for deductive reasoning. The concept of mental models was applied to human-computer interaction in the 1980s. - Mental models are internal representations of systems and environments derived from experiences. Accurate mental models correspond to real outcomes. Models can represent how systems work or how people interact with systems.

1. Mental Models Joel Kline Texas Tech University May 23, 2007

2. If I give you my keys…could you drive my van?

11. InDesign Interface MM

12. When you have no MM?