Learning, Memory and Attention - HCI - EPFL

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Accommodate user’s experience levels • Three user groups are identified : novice, intermittent, frequent users. - Novice users are those who do not have enough syntactic knowledge of the system and only a little semantic knowledge. He is mostly doing problem solving. - A novice user needs clarity and simplicity in an interface, a small number of meaningful functions, lucid error messages, and informative feedback. Prof. Dr. Pearl Pu 26
Intermittent users • Intermittent users maintain semantic knowledge of the system but loose syntactic knowledge. • In the interface, he prefers simple consistent commands, meaningful sequencing of steps, easy to remember functions and tasks, online assistance and help, and concise manuals. Prof. Dr. Pearl Pu 27
Page 1 and 2: School of Computer and Communicatio
Page 3 and 4: Learning • Acquiring - New concep
Page 5 and 6: Minimize learning by metaphors •
Page 7 and 8: Design metaphors • Ensure emotion
Page 9 and 10: Metaphors continued • Caveat - Me
Page 11 and 12: Metaphors continued • Caveat - Me
Page 13 and 14: Small exercises • Design a set of
Page 15 and 16: Prof. Dr. Pearl Pu 13
Page 17 and 18: Consistency of screens (display ine
Page 19 and 20: Still on learning • Model of how
Page 21 and 22: Acquisition of cognitive skills •
Page 23 and 24: Experts: solve large chunks of prob
Page 25 and 26: Tdoff: power tools vs. loss of cont
Page 27: Example 2 : design tools for kitche
Page 31 and 32: Frequent users • Frequent and exp
Page 33 and 34: Memory: is what people forget with
Page 35 and 36: Recog. vs. recall • Ask users to
Page 37 and 38: Minimize user’s memory load • D
Page 39 and 40: Where we are • Model of how our m
Page 41 and 42: Techniques for getting attention
Page 43 and 44: GET users’ ATTENTION judiciously
Page 45 and 46: Use of fonts • Use no more than f
Page 47 and 48: Background colors • Background of
Page 49 and 50: Background colors • Consider colo
Page 51 and 52: Allocation of attention • On the
Page 53 and 54: Routinized tasks • A routine task
Page 55 and 56: ! Humans can do one problem-solving
Page 57: Consequence to interface design •

Learning, Memory and Attention - HCI - EPFL

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