For next week, find a usability example where the implementation model of the interface differs from your mental model, leading to a UP. Consider whether your mental model is typical of most users, and if not, whether the interface might match typical mental models of other users.
Submit a short (less than a page) description of the mental model example. You can submit through Piazza or bring a hard copy to class. You can upload pictures or other supporting materials to the discussion board. Be prepared to explain your example to the class.
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