10 Information Processing Part1

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10 Information Processing Part1

  1. 1. INFORMATION PROCESSING <ul><li>Lauralee Flores, M.S. </li></ul>
  2. 2. LECTURE OVERVIEW <ul><li>Human Considerations (PART 1) </li></ul><ul><ul><li>Model Human Processor (Fitt’s Law) </li></ul></ul><ul><ul><li>Memory </li></ul></ul><ul><ul><li>Vision & Color (stroop effect, color blindness) </li></ul></ul><ul><li>Design Considerations (PART 2) </li></ul><ul><ul><li>Affordances </li></ul></ul><ul><ul><li>Natural Mapping </li></ul></ul><ul><ul><li>Mental Models </li></ul></ul><ul><ul><li>Feedback </li></ul></ul><ul><ul><li>Simplicity </li></ul></ul><ul><ul><li>Consistency </li></ul></ul><ul><li>Prototyping (PART 3) </li></ul><ul><ul><li>Paper & Wizard-of-Oz Prototyping </li></ul></ul>
  3. 3. HUMAN CONSIDERATIONS
  4. 4. HUMAN PROCESSOR <ul><li>Human as a machine </li></ul><ul><li>Fitts’ Law </li></ul><ul><li>Applications </li></ul><ul><ul><li>Button size </li></ul></ul><ul><ul><li>Button location </li></ul></ul><ul><ul><li>Menu types (hierarchical, linear, pie) </li></ul></ul>
  5. 5. INFORMATION PROCESSING
  6. 6. MEMORY <ul><li>Short term memory (working memory) </li></ul><ul><ul><li>7+/-2 chunks bits </li></ul></ul><ul><ul><li>Decays rapidly (~7 s) </li></ul></ul><ul><ul><li>Rehearsal & Interference </li></ul></ul><ul><ul><li>Visual Information (iconic memory) </li></ul></ul><ul><ul><ul><li>Encodes – physical image </li></ul></ul></ul><ul><ul><ul><li>Decay – ~200 ms </li></ul></ul></ul><ul><ul><li>Auditory Information (echoic memory) </li></ul></ul><ul><ul><ul><li>Encodes – physical sound </li></ul></ul></ul><ul><ul><ul><li>Size – 7+/-2 words </li></ul></ul></ul><ul><ul><ul><li>Decay – ~1500 ms </li></ul></ul></ul>
  7. 7. COLOR – EYE
  8. 8. COLOR <ul><li>Limitations of Human vision </li></ul><ul><ul><li>Color blindness </li></ul></ul><ul><li>Use redundant communication </li></ul><ul><li>Use few colors </li></ul><ul><li>Avoid saturated colors </li></ul><ul><li>Be consistent </li></ul><ul><li>Match expectations </li></ul>

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