Definition

Mental models are described as internal representation of the external world

  • they mimic the causal structure of real world to guide the behavior
  • they at the basis of the decision-making faculty
  • our models of the world get richer with experience, which enables more true-to-life simulations, and therefore better decisions
  • more detailed mental models are not necessarily more useful, and the amount of accuracy needed to make good predictions depends on one’s goals

How a mental model is built

  • users develop a mental model as a result of interacting with the user interface
  • mental models are formed from observable experience linking causes and effects, and this leads to expectations and predictions of phenomena

References