The Design of Everyday Things

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The Design of Everyday Things Page 39

by Don Norman


  Dvorak keyboard, 278

  Early adopters, 271

  Edison, Thomas, 270

  Electrical standards, 249

  e-Books (Electronic books), 16, 143, 286, 288–290, 319

  Electronic games, 282

  Electronic reminders, 109

  Elevators, destination-control, 146–149

  Emotion, xiii, xv, 5, 47–56, 293–295, 310

  behavioral level, 50–56

  cognition and, 47–50, 53–55

  positive and negative, 10, 38, 49, 63–64

  reflective level, 50, 53–56

  visceral level, 50–51, 53–56

  Emotional Design (Norman), 49, 54

  Engineers

  as designers, 6–8, 10

  as users of design team output, 241–242

  Environment, attributing failure/error to, 61–62, 63, 168

  Environmental cue, as reminder, 109

  Epic poems, memory for, 82–85

  Error, 66–68, 162–216

  automation and, 213–214

  checklist to reduce, 189–191

  classification as slips or mistakes, 170

  defined, 170–171

  deliberate violations and, 169–170

  design and, 162–163, 198–211, 215–216

  design to prevent or lessen cost of, 67–68, 198–210, 202–205

  detecting, 194–198

  reasons for, 163–169

  reporting, 191–194

  resilience engineering and, 211–213

  social and institutional pressures and, 186–191

  See also Mistakes; Slips

  Error messages, 203–205

  Ethnography, 222–224

  Evaluation, 38–40, 216

  action cycle and stages of, 40–44

  Event-driven behavior, 42, 43

  Everyday practice, scientific theory vs., 104–105

  Execution, 38–40, 216

  action cycle and stages of, 40–44

  feedforward information and, 71–72

  Expectations

  behavioral cognition and, 52

  emotions and, 52–53

  Experience design, 4–5, 9, 302, 307

  Experts

  design and, 6

  Jidoka and, 192

  slips and, 7, 173, 199

  unconscious action and, 47, 100–101, 173, 180, 216

  Eyewitness testimony, 97

  Fahrenheit scale, conversion between Celsius scale and, 101–102

  Failure

  attributing reason for, 61–62

  “fail frequently, fail fast,” 229

  learned helplessness and, 62–63

  learning from, 64, 229

  positive psychology and, 63–65

  self-blame and, 65–71, 113, 162–169

  Farber, Sam, 244–245

  Faucet design, 115–116, 150–155

  Featuritis, xvii, 258, 261–265

  Federal Aviation Authority (FAA), 193–194, 200

  Federal Communications Commission (FCC), 250, 251

  Feedback, 10, 23–25, 298

  as aid in design, 71–72

  behavioral states and, 52

  to bridge Gulf of Evaluation, 39, 40

  characteristics of effective, 23–24

  communicating progress, 60

  faucet design and, 153

  prioritizing, 25

  reducing error and, 216

  Feedforward, 71–72, 216

  Filing cabinet, Gulfs of Evaluation and Execution and, 37–39

  Financial institutions, mistake outcomes, 198

  Financial transactions, sensibility checks and, 206

  Fingerworks, 269–270

  Fire exit lockout, 144

  Fire extinguisher pins, 144

  Fischhoff, Baruch, 197

  “Five Whys” analysis, 165–169, 219

  Flexibility, designing to accommodate, 246–247

  Flow state, 55–56

  Forcing functions, 141–142, 143

  deliberate disabling of, 145

  interlocks, 142–143

  lock-ins, 143–144

  lockouts, 144–145

  memory-lapse slips and, 176–177

  reducing error and, 216

  Ford, Henry, 292

  Foresight ≠ hindsight, 197, 315

  Frames, 129

  Freud, Sigmund, 173

  F-22 airplane accidents, 164–166

  Games, 256

  Gated product development methods, 234, 235

  General Electric, 30

  Generalizations, forming, 57

  Gestalt psychology, 12, 22

  Gestural keyboards, 278

  Gesture-controlled faucets, soap dispensers and hand dryers, 115–116

  Gibson, J. J., 12

  Gibsonian psychology, 12

  Gimli Glider Air Canada 767

  accident, 172, 314

  Global Positioning System (GPS), 214, 281

  Goal

  be-goal, do-goal, and motor-goal, 233

  comparing outcome with, 41

  conscious vs. unconscious, 42

  stages of execution, 41, 42–43

  Goal-driven behavior, 42–43, 44

  Goffman, Erving, 129

  Google, 90

  Gore, Al, 290

  GPS. See Global Positioning System (GPS)

  Graphical user interface, 100

  Greetings, cultural conventions regarding, 130–131

  Gulf of Evaluation, 38–40, 216

  Gulf of Execution, 38–40, 216

  Hand dryers, gesture-controlled, 115–116

  Handed-up technology, 297

  Haptics, 95

  Hassenzahl, Marc, 233

  HCD. See Human-centered design (HCD)

  Hersman, Deborah, 210

  High-definition television (HDTV), 250–252, 272

  Highway signs, misinterpreting, 196–197

  Hill climbing, 281

  Hindsight,

  explanations given in, 183, 197–198, 315

  foresight ≠ to, 197, 315

  Hollnagel, Erik, 212

  Homer’s Odyssey and Iliad, 84

  Household appliances, 240–241, 292

  Human-centered design (HCD), 8–10, 137, 219–220, 221–236

  activity-centered design vs., 231–234

  design thinking and, 219

  idea generation (ideation) in, 222, 226–227

  incremental innovation and, 281

  iteration, 229–230, 234–236

  iterative design vs. linear stages, 234–236

  observation/design research and, 222–226

  in practice, 236–239

  prototyping in, 222, 227–228

  role of, 9–10

  spiral method, 222. See also Iteration

  testing in, 222, 228–229

  Human error, See Error

  Human-machine interaction, 6, 185, 215

  Hutchins, Edwin, 287

  HyperCard, 289

  Idea generation (ideation), 222, 226–227

  Identity theft, 90

  IDEO, 64, 229, 303, 307

  “fail frequently, fail fast,” 229

  “if only” statements, accidents and, 209

  Iliad (Homer), 84

  Implanted devices, 284

  Implicit knowledge, 236

  Inclusive design, 243–247

  Incremental innovation, 279–281

  Individual

  as focus of design, 231, 233

  technology and empowerment of, 295–297

  Industrial design, 4–5, 9

  Industrial Design Society of America (IDSA), 5

  Industrial settings, natural mapping and, 117

  Information pickup, 12

  Innovation, xvii, 43, 374, 279–282, 397, 317

  radical and incremental, 279–282, 319

  Inside-out display, 121–122

  InstaLoad battery contacts (Microsoft), 126, 127, 313

  Institutional pressure, accidents and, 186–191


  Instruction manuals, see manuals

  Interaction, principles of, xii–319

  Interlocks, 142–143

  Interpret, in action cycle, 41

  Interruptions, as source of error, 163, 176, 199–200

  iPod, 233

  Iteration in design, 222, 229–230, 234–236. See also Repetitive cycles

  Jidoka, 192

  Joysticks, 21

  Junghans Mega 1000 digital watch, 27–28

  KAIST, wall at, 18

  Kasparov, Gary, 287

  Kelly, David, 229

  Key

  automobile, 141–142

  physical constraints and design of, 127–128

  Keyboard, evolution of, 264–267, 274–279, 318–319. See also QWERTY

  Key logger, 91

  Kiss nightclub fire, 181

  Kitchen organization, 247

  KLM Boeing 747 crash, 186–187

  Knobs, 13, 177

  Knowledge

  arbitrary, 98–100

  declarative, 78

  procedural, 78–79

  retrieval of, 97–98

  Knowledge-based behavior, 179, 180

  Knowledge-based mistakes, 171–172, 184–185

  Knowledge in the head, 74–75, 105–109, 123

  behavior and, 75–77, 79–85

  memory as, 86–91

  in multiple heads, multiple devices, 111–113

  prospective memory and, 107–109

  remembering air-traffic control instructions and, 105–107

  tradeoff with knowledge in the world, 109–111

  Knowledge in the world, 74–75, 77–79, 123

  behavior and, 75–79

  Lego motorcycle construction and, 123–125

  operating technology and, 216

  tradeoff with knowledge in the head, 109–111

  See also Constraints

  Kuhn Rikon, 244

  Law, cultural convention codified into, 131

  “Law of Product Development,” xvii, 237–239, 261

  Learned helplessness, 62–63

  Learned skills, 51–53

  Learning

  changes in convention and new, 149–150

  conscious thinking and, 45–46, 100–101

  failure and, 64

  knowledge in the environment and, 78

  rote, 98

  Legacy problem, 127, 266, 274

  Lego motorcycle, 123–125, 129, 130, 262, 263

  Leveson, Nancy, 212

  Levitt, Theodore, 43–44

  Life cycle, product, 294

  Light, stages of turning on, 40, 42

  Light controls, activity-centered, 140–141

  Light, as feedback, 23–24

  Light switches, mapping and, 20–21, 135–140

  Linear stages of design, 234–236

  Living with Complexity (Norman), 14, 247

  Lizard brain, 50–51

  Location-based reminders, 109

  Lock-ins, 143–144

  Lockouts, 144–145

  Locks, physical constraints and design of, 127–128

  Logical constraints, 124–125, 130

  Long-term memory (LTM), 47, 95–98

  Lord, Albert Bates, 83–84

  Machine-people interaction, 68, 185, 215

  Machine-readable codes, 207

  Machines, characteristics of, 5–6

  Management, role in design, 34–35

  Management review, 234, 235

  Manuals, 3–4, 26, 27, 29, 180, 185, 294

  system image and, 31

  Manufacturing, product success and, 294

  Mapping, 10, 20–23, 72, 298

  bridging Gulf of Execution and, 40

  culture and, 118–122

  faucet design and, 151, 154

  levels of, 115

  minimizing chance of inappropriate actions using, 67

  natural (see Natural mapping)

  Market analytics, 224–225

  Marketing

  effect on design, 277–278

  product success and, 294

  Market research, design research vs., 224–226

  McAfee, Andrew, 287

  Meaning, semantic constraints and, 129–130

  Meaningful things, memory for, 98–100

  Medicine

  checklists in, 190–191

  electronic records, 95

  errors in, 198, 200, 206

  interruptions in, 200

  safety reporting system, 194

  Memory

  acoustical, 94

  approximate methods and, 100–105

  for arbitrary things, 98–100

  constraints and, 82–85

  declarative, 47, 97

  distortions/falsification in, 96

  knowledge in the head and, 86–91, 105–109

  long-term, 47, 95–98

  for meaningful things, 98–100

  in multiple heads, multiple devices, 111–113

  procedural, 47, 96–97

  prospective, 107–109

  reflective, 53–54

  retrieval, 45–47

  short-term (working), 92–95

  structure of, 91–105

  transactive, 111–112

  use of mnemonics, 88, 93–94, 99

  See also Knowledge in the head

  Memory-lapse mistakes, 171, 172, 185–186, 195, 199–200

  Memory-lapse slips, 171, 173, 176–177, 195, 199–200

  Mental arithmetic, 103–104

  Mental models, 26, 31. Conceptual models

  Mercedes-Benz, 22, 279

  Metaphor, design and choice of, 120–122

  Metric measurement, 149, 253, 254

  accidents resulting from conversion, 172, 314

  Microsoft

  flexible date and time formats, 70–71

  InstaLoad battery contacts, 126, 127, 313

  Microwave ovens, interlocks and, 142

  Mistakes, 170–173

  classification of, 179–186

  confirmation messages and, 204–205

  detecting, 194, 195

  explaining away, 195–196

  knowledge-based, 171–172, 184–185

  memory-lapse, 171, 172, 185–186, 195

  rule-based, 171, 180–184

  See also Error; Slips

  Mitsubishi, 269

  Mnemonics, 88, 93–94, 99

  Mode error slips, 174, 177–179, 207

  Models

  approximate, 100–105

  See also Conceptual models

  Modes, 177–178

  Moon, Youngme, 262–263

  Moral obligations of design, 291–293

  Motorcycle

  Lego, 123–125, 129, 130, 262, 263

  steering system, 102–103

  turn signal switch, 99–100

  Motor-goal, 233

  Motor system, visceral response and, 50–51

  Multidisciplinary approach to design, 34–36, 238–239, 242–243

  Multitasking, error and, 200

  Multitouch displays, 269, 270

  Music, technological change and, 283

  Names

  identifying people by, 89–90

  memory for, 98

  Narrative, conceptual models as form of, 57–59

  National Academy of Engineering, 286

  National Aeronautics and Space Administration (NASA), 193–194

  National Highway and Traffic Safety Administration (NHTSA), 157, 159–160

  National Institute of Health (NIH), 278

  National Transportation Safety Board (NTSB), 135, 188–189, 198, 210

  Natural mapping, 22, 113–118. See also Mapping

  culture and, 118–122

  gesture-controlled devices and, 115–116

  in industrial settings, 117

  as knowledge in the world, 79

  light switches and, 137–140

  reducing error and, 216

  spatial cues and, 115

  stove controls and, 113–115, 116–
117, 118

  tradeoffs, 117–118

  Negative emotional state, 49

  Nest thermostat, 68–69

  Nickerson, Ray, 74

  Nielsen, Jakob, 229

  Nielsen Norman group, 303, 317

  Nissan, 158

  Nonstandard clock, 249, 250

  Norman, Don 92

  “Norman doors,” 1–3

  Norman’s law of product development, xvii, 237–239, 261, 309 310

  Norms, cultural, 130–132

  Novices, mistakes and, 173, 199

  NTSB. See National Transportation Safety Board (NTSB)

  Nuclear power plant accident, 7, 201

  Observation, in human-centered design, 222–226

  Odyssey (Homer), 84

  Office copiers, design constraint for, 241

  Our Choice (Gore), 290

  Outside-in display, 121, 122

  Overlearning, 45–46

  OXO, 244–245

  Paller, Ken, 96

  Palo Alto Research Center (PARC), 227, 317

  Panic bars, 60, 133

  Paris Métro doors, 134–135

  Passwords, remembering, 86–89, 91, 312

  Patents, 238

  Pedestrians, and electric cars, 157–161

  Penny, knowledge in the head and in the world and, 74–75, 77

  People with special needs, designing for, 243–247

  Perceive, as stage of evaluation, 41

  Perceived affordances, 13, 18, 19, 145. See also Signifiers

  Perform, as stage of execution, 41

  Personality, attributing failure to, 61–62

  Physical anthropometry, 243

  Physical constraints, 124–128

  battery design and, 125–127

  forcing functions, 141–142, 143

  as knowledge in the world, 79

  locks and keys and, 127–128

  Pilots, remembering air-traffic control instructions, 105–107

  Plan, as stage of execution, 41

  Planned obsolescence, 291–292

  Plato, 286

  Poetry, constraints of, 82–85

  Poka-yoke, 193

  Porsche, 158

  Positive psychology, 63–65

  Precision, knowledge and, 76, 79–82

  Predictive typing, 266

  Price, design and competition/focus on, 241, 259, 260, 264

  Problem identification in design, 217–220

  double-diamond diverge-converge model of design and, 220–221

  See also Human-centered design (HCD)

  Problem solving, reflective, 46–47

  Procedural knowledge, 78–79

  Procedural memory, 47, 96–97

  Product development

  competitive forces in, 259–264

  cycle of, 268–279

  Don Norman’s law of, 237–239

  managing, 235–236

  multidisciplinary needs, 34–36, 238–239, 241–243

  process of, 221–230, 234–236

  prototyping, 227–228

  technology and, 258, 264–268

  timing of innovation, 271–272

  Product manager, 230

  Products

  development cycle, 260, 268–279

 

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