The number of items that can be held in short-term memory or that can be the focus of attention, as stated by George A. Miller in his 1956 paper. The number applies only to retention and recall of information, and not to recognition. “The Magic Number Seven, Plus or Minus Two: Some Limits on our Capacity for Processing Information” (The Psychological Review, 1956, vol. 63, pp. 81-97).
A story which has the key elements of a realistic situation when the user would interact with the system being designed or evaluated. The scenario includes consideration of the user’s goals, tasks and interaction. Scenarios can be created for user groups, workflows or tasks to explore, understand and test the different types of needs and goals.
A representation of the information that can be found on a Website or of a system. When presented as content on a Website it is typically organized in a hierarchical listing. Alternatively, the same information can be represented with boxes and arrows that visually show the hierarchy of the interface.