Index D, E. Affordances, 25 Animal Crossing game, 110

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1 A Affordances, 25 Animal Crossing game, 110 B Badges Achievements, 37 Assassin s Creed 3, behavior, unintended consequences, 39 Gravity Gun, 38 Power and Curiosity, 38 Stack Overflow, 37 Behavioral economics, 19 Behavioral psychology, 10 Broadcast boundaries, 53 bulletin board systems, and newsgroups, 53 description, 53 social feedback (see Social feedback) Social Pyramid Scheme dark pattern, 54 C Cargo cult design, 9 Cognitive Evaluation Theory (CET), 15 Collection pattern Complete My Album, 36 The Pioneer Trail, 36 Pokémon s collection, Saving, 35, Spotify/Netflix, 36 Contact List Google Talk on Android, Impersonation dark pattern, 60 LinkedIn, 58 PlayStation 3, 59 Social Network Sites (SNS), 60 Crowdsourced science games pattern choice, 155 PlantSolver acceptance, 160 contact list, 163 feedback, 158 growth pattern, 157 Interaction by Demand dark pattern, 164 praise throughout interface, 161 Social Pyramid Scheme dark pattern, 164 Undo button, 162 weak answers, feedback, 159 problem statement, 155 Currency confusion description, 112 pattern, 100 purchase screen, Jester Leggings from CastleVille, 113 purchase screen, Lederhosen from CastleVille, 113 Social Security number (SSN), 112 waste aversion, 112 Customization description, 82 endowment effect, 82 filters (see Filters) web browsers with extensions, 82 D, E Design patterns correctness of patterns, 27 description,

2 180 Design patterns (cont.) motivational dark patterns, 32 definition, 24 discovery, 26 gameful category, information category, 31 interface category, 31 library, 31 social category, 30 users perception, 25 user stories, 23 organization, 29 pattern languages, 21 process, 168 prototype theory, 27 shorthand notations, 29 template, 28 F Filters bubbles, 84 description, 83 social feedback, 83 Flickr, 52 53, 85, 91 Focus tests, 25 G Gameful patterns applications, 34 badge (see Badge) collection (see Collection pattern) gameful design, 33 growth (see Growth pattern) increased responsibility (see Increased responsibility) leaderboard (see Leaderboard) qualities, gaming, 33 score (see Score) users exploring systems, 34 Gamification propaganda, 167 Grind Battlefield 3, 106 description, 104 Halo multiplayer, 4, 105 Halo series, 104 leveling implementation, Halo4, 106 MMOs, 106 Three Pillars of Grind, 105 Growth pattern Animal Crossing game, 41 delayed time effects, 40 description, 40 liveliness, 41 non-determinism, 41 H Hellbroadcast Facebook, 108 hellbanning, 107 prevention, group s overall tranquility, 107 Something Awful and Hacker News communities, 107 Humar the Pridelord. World of Warcraft, 100 I, J Identifiable community description, 61 meta-area, rule, 61 suitable communities, 61 Impersonation description, 120 Facebook, 120 players sharing situations in games, Increased responsibility description, 41 Hacker News, Yelp and Stack Overflow, 42 karma, 42 reputation required, 43 Information patterns customization (see Customization) description, 81, 96 intriguing branch (see Intriguing branch) organization of information (see Organization of information) personalization, 87 reporting, 90 search (see Search pattern) task queues (see Task queues) Interaction by demand method Animal Crossing game, 110 dark pattern, 166 description, 108

3 181 developer s unsolicited notifications, 109 Dream Heights notification on ios, 109 FarmVille, 110 mockups, notifications, 108 TuneIn notification on ios, 109 The Unofficial Apple Weblog (2012), 109 Words With Friends notification on ios, 109 Interface Patterns description, 69 notifications, praise, predictable results, State Preservation, Undo, 79 users communication, 69 Intriguing branch checking notifications, 85 description, 84 inboxes, 85 Intrinsic motivation theories autonomy, competence and relatedness, Deci and Ryan, 13 description, 12 importance of learning, Malone, 13 multifaceted view, Reiss, 16 K Khan Academy, 166 badges achievements, 135 Make It Rain, 137 Sun Badges, 136 unhelpful learning, 137 unintentional consequences, 136 description, 128 patterns activity stream, 129 badge, 129 broadcast, 129 grind (dark pattern), 130 identity shaping, 129 increased responsibility, 130 interface during video, 129 meta-area, 130 praise, 130 reporting, 130 score, 130 search, 130 social feedback, 130 state preservation, 130 task queue, 130 score energy points, 133 extrinsic reward, 135 incentives, 134 watching video, 134 task queue description, 130 goals, 133 playlist, 131 Skill Progress task queue, 132 suggested activity task queue, 132 L Leaderboard description, 44 Foursquare mayorship, 45 hedonic treadmills, 45 neighbor bar from Zynga Ville games, WayIn ownership system, owner and the subscribers, 46 web and mobile apps, 44 M Monetary dark patterns avoidance, 111 currency confusion (see Currency confusion) monetized rivalries (see Monetized rivalries) Pay to Skip (see Pay to Skip) Monetized rivalries description, 114 Ego depletion theory, 115 Robot Unicorn Attack Evolution (RUAE), Motivation, 167 Motivational dark patterns defined, 100 ethical issues, 99 flash-in-the-pan companies, 99 Humar the Pridelord. World of Warcraft, 100 interaction by demand, 101 organization, 101 user expectations, 99

4 182 Motivational design description, 1 gameful patterns, 4 information patterns, 6 interface patterns, 5 irresistible smartphone, 2 monetary dark patterns, 7 patterns, 3, 167 social capital dark patterns, 7 social patterns, 4 temporal dark patterns, 6 Zero-Sum Game, 2 Motivational user stories, 23 N Notifications patterns, O Organization of information, 85 P, Q Pattern languages, 21 description, 145 library, 165 template, 28 Pay to Skip Battlefield 3, 117 description, 116 free-to-play games, 116 frustration, 116 Mighty Eagle, 116 premium users, 117 SimCity Social, 117 Social Pyramid Scheme dark pattern, 116 Personalization Amazon recommendations, 87 customization, 89 description, 87 heavy-duty machine-learning and data-mining algorithms, 89 shopping and product advertising, 87 Praise pattern, Prototype theory, 27 Psychology, motivation behavioral, 10 behavioral economics, 19 cargo cult design, 9 intrinsic motivation theories (see Intrinsic motivation theories) R Reddit, 147 Robot Unicorn Attack Evolution (RUAE) enhancements, different values, 115 monetized rivalries system, 114 storefront, 115 S Score definition, 46 Foursquare points screen, 48 Game of Life, players, 47 Social Feedback pattern, 47 Star Trek Into Darkness app, 49 SDT. See Self-determination theory Search pattern description, 91 digital picture collection, 91 Facebook, 92 Google Drive, 91 photos, 91 Self-Determination Theory (SDT), 14, 146 Shorthand notations, 29 Social capital dark patterns impersonation (see Impersonation) Instagram, 119 social pyramid schemes (see Social pyramid schemes) Social feedback behavioral economics, 57 description, 54 ebay, 57 Etsy, possible feedback mechanisms, 55 Google Now on Android, 56 Google Search, 56 structured, 55 unstructured, 55 voting rings, 57

5 183 Social Network Sites (SNS), 60 Social patterns Activity Stream, 52 broadcast (see Broadcast) Contact List (see Contact List) description, 51 Identifiable Community (see Identifiable community) Identity Shaping, Item Sharing, 67 Social pyramid schemes enhanced experience, 123 Facebook, 124 investors, 123 Ville-style games, 124 Social Security number (SSN), 112 State Preservation pattern, T Task queues advantages, 95 designing, 96 goal-gradient hypothesis, 95 LinkedIn, 94 quest logs, games, 93 Zeigarnik effect, 96 Temporal dark patterns description, Grind (see Grind) Hellbroadcast (see Hellbroadcast) Interaction by Demand method (see Interaction by Demand method) The Irresistible Smartphone, 2 Tiny Tower description, 138 patterns Badge, 141 Broadcast, 141 Contact List, 141 Currency Confusion, 142 growth, 141, 143 interaction by demand, 142 notification, score, 141, 143 state preservation, 141 task queue, 141 zoomed-in view, tower, 140 zoomed-out view, tower, 139 U Undo pattern, 79 The Unofficial Apple Weblog (2012), 109 User interface widget, 25 V Votester, 146, 148, 155, 166 W, X, Y Web site built around voting pattern choice autonomy, 146 mastery, 146 on-boarding, 147 patterns, 147 Reddit, 147 relatedness, 146 self-determination theory (SDT), 146 voting interaction, 146 problem statement, 146 Votester activity stream, 153 flyout, 152 identity shaping, 154 new poll, 151 social feedback, 150 tag page, 149 user s favorite tags, 148 Z Zeigarnik effect, 96, 133 The Zero-Sum Game, 2

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