Tài liệu Human-Computer Interaction pot

Human-Computer Interaction 506.020 2VO Mensch-Maschine-Kommunikation SS 2002 Graz University of Technology, Austria Lecture Notes Draft Version of 25th February 2002 Dr Keith Andrews IICM Graz University of Technology Inffeldgasse 16c A-8010 Graz kandrews@iicm.edu These lecture notes are available online at http://courses.iicm.edu/hci/ Copyright c 2002 Keith Andrews Contents Preface viii Credits ix Human Computer Interaction Would You Use Untested Software? 2.1 Zippy: Evaluating a UI Specification 2.2 MANTEL UI Exercise 3 11 The Psychology of Usable Things 3.1 The Psychopathology of Everyday Things 3.2 The Psychology of Everyday Things 3.3 The Psychopathology of Computers 3.4 Interface Hall of Shame 3.5 User Centered Design 17 17 24 34 37 40 Usability Engineering 4.1 Defining Usability 4.2 Usability Engineering Lifecycle 4.3 Planning Usability Activities 41 42 43 45 Goal-Oriented Interaction Design 5.1 Interviewing Users 5.2 Creating Personas 5.3 Defining Goals for each Persona 5.4 Defining Scenarios for each Persona 5.5 Moving to a Design Solution 47 50 51 56 56 57 Prototyping 6.1 Verbal Prototype 6.2 Paper Mock-Ups 6.3 Interactive Sketches 6.4 Working Prototypes 6.5 Implementation 60 60 60 62 62 64 Usability Inspection Methods 7.1 Heuristic Evaluation 7.2 Prioritising Found Usability Problems 7.3 Cognitive Walkthrough 7.4 Action Analysis 66 66 72 73 76 i Usability Testing 8.1 Preparing for Usability Testing 8.2 Six Stages of Conducting a Test 8.3 Paper and Pencil Test 8.4 Thinking Aloud 8.5 Co-Discovery 8.6 Formal Experiments 8.7 Query Techniques 78 79 84 93 94 95 96 99 Usability in Practice 9.1 Comparison of Evaluation Techniques 9.2 Discount Usability Engineering 9.3 Case Study: Touchscreen Toggle Design 9.4 Differences in Evaluation Practices 101 101 101 102 102 10 Visual Design and Typography 107 10.1 Typography 107 10.2 Factors Influencing the Legibility of Text 107 11 Icon Design 11.1 Visual Association 11.2 Standard Parts of an Icon 11.3 Icon Design Principles 11.4 Cultural and International Issues 11.5 Do Not Always Use Icons 11.6 Iconic Language 11.7 The Icon Design Lifecycle 11.8 Designing Icons for Sun’s Public Web Site 114 114 115 115 117 117 121 124 127 12 Web Site Usability 12.1 Three Fundamental Kinds of Web Site 12.2 Know Your Web Site Users 12.3 Information Site Design (Information Architecture) 12.4 Content Design 12.5 Page Design 12.6 Web Site Design Cycle 130 132 135 138 143 146 160 161 161 166 177 177 13 Web Usability Case Studies 13.1 SunWeb: User Interface Design for Sun Microsystem’s Internal Web 13.2 SunWWW: User Interface Design for Sun’s Web Site 13.3 MSWeb: Microsoft Intranet Site 13.4 Designing Web Applications Bibliography 178 ii List of Figures 1.1 The nature of Human-Computer Interaction 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 The ZIPPY Window The ZIPPY Exercise Sheet Suggestion for a revised ZIPPY display USPS Zip Code Lookup USPS Zip Code Lookup USPS Zip Code Lookup The MANTEL display Suggestion for a revised MANTEL display 9 10 10 12 16 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 3.21 3.22 3.23 3.24 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 Video Recorder Video Recorder Remote Control The Leitz Pravodit slide projector The control panel in lecture theatre HS EDV Audiovisual trolley with inputs at rear Warning label on audiovisual trolley Where is the toilet paper? Ah, there it is! Ambiguous door designs Good use of affordances in door designs Example of ambiguous affordances in door design Good use of affordances in the same hotel Arbitrary mapping of controls to hot plates Paired cooker controls A full, natural mapping of cooker controls Lego Motorbike Kit Assembled Lego Motorbike Beer Tap Handles Fridge freezer controls and instructions The apparent conceptual model for the fridge freezer The actual conceptual model for the fridge freezer Projecting a correct conceptual model Scissors project a good conceptual model A digital watch provides no obvious conceptual model New keyboard for Windows PCs Internet Explorer 4.0 cache settings panel Internet Explorer 4.0 certificate authority selection panel A two-item list box in Visual Basic 5.0 A two thousand item list box Multi-row tab controls Deleting files from an almost full hard disk Ejecting a diskette on the Mac 18 19 19 20 21 21 23 23 25 25 25 26 27 27 27 28 29 30 31 32 33 33 34 34 36 37 38 38 38 39 39 39 4.1 Usability engineering cartoon 41 iii 4.2 4.3 4.4 Defining usability in the context of system acceptability Riding the learning curves Categories of user experience 42 43 44 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Elastic user Jumble car Cars to match their drivers The InFlight Seat Console The InFlight Final Design Parallel and iterative design Lateral Thinking 52 52 52 54 56 57 58 6.1 6.2 6.3 6.4 6.5 6.6 6.7 Paper Prototype of IICM on Air Working Prototype of IICM on Air Paper Prototype Paper Prototype Paper Prototype An interactive sketch Dimensions of prototyping 61 61 62 63 63 64 65 7.1 7.2 7.3 Aggregated evaluations Sample Banking System dialogue Aggregated evaluations by evaluator experience 69 70 71 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 8.10 8.11 8.12 8.13 Simple usability test setup Single room, single camera test setup Example single room, single camera test Alternative single room setup Observation room with electronic monitoring Classical usability lab Example task list for usabilty test of Harmony Orientation script for Harmony usability test Background questionnaire for Harmony usability test Combined nondisclosure and consent form A generic data collection form Example test checklist Completed data collection form 80 80 81 81 82 82 85 86 88 89 89 90 91 9.1 9.2 9.3 Hotmail password hint question 104 Hotmail redesigned secret question 105 Hotmail compose new message 105 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 10.10 10.11 10.12 10.13 Serif and sans serif fonts Proportional versus fixed width fonts Font size changes All upper case slows reading Lower and mixed case words have distinctive shapes En and em word spacing Line spacing About 60 characters per line in books About 30 characters per line in newspaper columns Flush and justified text styles Using a layout grid Text right up to margins Text with ample margins iv 107 108 108 109 109 110 110 110 110 111 112 113 113 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 11.12 11.13 11.14 11.15 11.16 11.17 11.18 11.19 The standard parts of an icon Visually imbalanced icons Mixed levels of realism in icons Symbols for men and women at different levels of abstraction Typical viewing distances to icons Symbol silhouette conveys most information Garish multicolour icons Well-balanced, consistent set of icons Evolution of Microsoft Word icon bar Language-dependent text or characters in icons Culturally-dependent mailbox icons Icons for food an drink areas Words for food an drink areas The icon design lifecycle Test setup for icon intuitiveness test An icon intuitiveness test in progress Room Setup for the icon test Icon Iterations for “Products and Solutions” Icon Iterations for “Sun on the Net” 116 116 116 118 118 118 119 119 119 120 120 120 120 125 125 126 126 129 129 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 12.9 12.10 12.11 12.12 12.13 12.14 12.15 12.16 12.17 12.18 12.19 12.20 12.21 12.22 12.23 12.24 12.25 12.26 12.27 12.28 12.29 12.30 Three kinds of web site Mixing purposes within a site The restaurant metaphor Concept cards scattered on a table Test facilitator explains unclear concepts Grouping Cards into Categories Categories labelled with Post-it notes An unplanned labeling system A planned labeling system Navigational bar at top of each page Use of the META tag at Virtual Vineyards Link overload on PICS pages at W3C The Virtual Vineyards site The Virtual Vineyards site, with table borders turned on Original look of Keith’s home page Keith’s redesigned home page Behind the scenes at Keith’s redesigned home page GIF interlacing Progressive JPEG Using transparency for non-rectangular images Anti-aliasing a black line Antialiasing a red circle An antialiased circle against a different background Greeking test, template Greeking test, template Greeking test, template Greeking test, template Greeking test, template Average percentage of correctly identified page elements Preferred page templates 133 133 134 139 139 140 140 141 141 142 144 145 147 148 150 150 152 153 154 154 154 155 155 156 157 157 158 158 159 159 13.1 13.2 13.3 SunWeb: Card Distribution to Icons 162 SunWeb: Main and Second Level Mastheads 164 SunWeb: Final Home Page Design 165 v 13.4 13.5 13.6 13.7 13.8 13.9 13.10 13.11 13.12 13.13 13.14 13.15 13.16 13.17 13.18 Usability lab setup at Sun SunWWW Button Bar Redesign SunWWW Card Sorting SunWWW Paper Prototyping SunWWW Working Prototype SunWWW Design SunWWW Design SunWWW Design SunWWW Design SunWWW Design SunWWW Design SunWWW Design SunWWW Design SunWWW Design SunWWW All Nine Iterations vi 167 167 168 168 169 169 170 171 172 172 173 174 175 175 176 List of Tables 2.1 Summary of problems found in MANTEL 15 4.1 4.2 Setting a usability target Survey of usability budgets 44 46 5.1 5.2 5.3 5.4 5.5 Differences Between Computers and Humans Programmers Think and Behave Differently Personal and Corporate Goals are Different Four Main Passenger Personas Five Main Employee Personas 48 48 49 54 55 7.1 7.2 Proportion of evaluators by experience Average times for typical keystroke-level actions 71 76 8.1 8.2 User profile for users of Harmony Simple coding scheme for event logging 85 89 11.1 11.2 11.3 11.4 11.5 Iconic language for Windows NT 4.0 documents Iconic language for document and link icons in Harmony First Round of Icon Designs for “Technology and Developers” Second Round of Icon Designs for “Technology and Developers” Third Round of Icon Designs for “Technology and Developers” 122 123 128 128 128 12.1 12.2 12.3 12.4 12.5 12.6 12.7 Typical cost of building a web site Connection Speed How Long Will Users Wait? Reasons for Return Visits SOWS Linkrot Survey Maximum acceptable page sizes HTML source code for Keith’s new home page 134 136 136 137 145 149 151 13.1 13.2 13.3 SunWeb: Results of Icon Intuitiveness Study 163 SunWeb: Five Iterations of Specialised Tools Icon 165 User Comments on Design Icons 173 vii Preface These lecture notes have evolved over many years of teaching HCI at Graz University of Technology and teaching User Interface Design at Technikum Kă rnten I would like to thank my students past and present for their many suggestions a and corrections which have helped to massage these notes into their current form References in Association with Amazon References with an ISBN number are linked to amazon.com (or amazon.co.uk or amazon.de) for quick, discounted purchasing Amazon pay a small referral fee to the referrer (me) for each item you purchase after following such a link – the item itself does not cost you any more If you find these notes useful and would like to contribute towards their maintenance, please purchase any book you might want after following a specific ISBN link from here For example: amazon.com amazon.co.uk amazon.de USA UK Germany http://www.amazon.com/exec/obidos/ASIN/1558605339/keithandrewshcic http://www.amazon.co.uk/exec/obidos/ASIN/1558605339/keithandrewshc01 http://www.amazon.de/exec/obidos/ASIN/1558605339/keithandrewshci for a book with ISBN 1558605339 Note that amazon.de deliver to Germany, Austria, and Switzerland free of shipping! Alternatively, you can also follow one of the following links to your nearest Amazon home page: amazon.com amazon.co.uk amazon.de USA UK Germany http://www.amazon.com/exec/obidos/redirect-home/keithandrewshcic http://www.amazon.co.uk/exec/obidos/redirect-home/keithandrewshc01 http://www.amazon.de/exec/obidos/redirect-home/keithandrewshci and any item you buy in that session will count Thanks and happy reading, Keith viii Credits • The paper prototype images of the Northumberland Bank interface in Section 4.2 are used with kind permission from Cliff Brown, University of Northumbria at Newcastle • The material in Section 9.4 on Comparative Usability Evaluation is used with kind permission from Rolf Molich, DialogDesign, Denmark • The material in Sections 11.8, 13.1, and 13.2 on Sun’s public and intranet web sites is used with kind permission from Jakob Nielsen • The figures in Section 12.5 on greeking tests are used with kind permission from Tom Tullis, Fidelity Investments ix 167 13 WEB USABILITY CASE STUDIES Figure 13.4: Usability lab setup at Sun Figure 13.5: The top button bar of Sun’s WWW site before and after redesign Changing the button bar resulted in 416% increase in use over a two-month period! 13 WEB USABILITY CASE STUDIES Figure 13.6: Card sorting for Sun’s WWW site Users group concepts into similar categories and name them Figure 13.7: Paper prototyping for Sun’s WWW site 168 13 WEB USABILITY CASE STUDIES Figure 13.8: Thinking aloud test of working prototype of Sun’s WWW site Note the small table clock to the left of the computer, so the facilitator does not continually look at their wristwatch Figure 13.9: SunWWW Design 1, the first attempt at a magazine-style home page 169 170 13 WEB USABILITY CASE STUDIES Figure 13.10: SunWWW Design Nine Iterations of Sun’s WWW Home Page SunWWW Feedback • Users mistook the page to be Adobe’s home page rather than Sun’s! • Most users’ initial impression was “very busy” or “complicated” • Even though beautifully designed, users did not notice the month name (January), negating the regular update message of magazine-style • When the month was pointed, users liked it but worried how they would be able to access the cover story next month • Users liked the subtitle “Entertainment for Propellerheads”, but it was removed anyway to enhance the site’s credibility • Users did not understand they could click on the lead paragraph to get more information about the Adobe story (no affordance for clickability) Likewise for the Weekly Update bar and the three bullet items • The striking colours in the photo seemed to clash with the rest of the screen design SunWWW Feedback • The month name was now more prominent and was seen by the users They all liked the fact that the page was dated • The blue {MORE} button made it clear there was more information • They understood that “News and Commentary” was clickable • Users still believed it was a page about Adobe – the Sun logo was made much more prominent on subsequent designs 171 13 WEB USABILITY CASE STUDIES Figure 13.11: SunWWW Design • Users generally liked the design: “pretty,” “ nice looking,” “looks professional” • A few users thought that they could only click on the “News and Commentary” bar and that the individual stories were not clickable SunWWW Feedback • Users were still having problems understanding the status of the page compared with other things called SunWorld (a Sun trade conference) • We decided to get rid of the name SunWorld for the home page (and consequnetly also the world map as its graphic identity) SunWWW Feedback • This design succeeded in making the Sun logo prominent • However, it overwhelmed users with buttons, giving them too many options • All the buttons have equal priority, a “laundry list interface” SunWWW Feedback • New cover story about HotJava • The test users did not like the “Duke” illustration • First design with real icons for the various buttons Some of the user comments are shown in Table 13.3 • Some icons are larger and more colourful than others to indicate prioritisation 172 13 WEB USABILITY CASE STUDIES Figure 13.12: SunWWW Design Figure 13.13: SunWWW Design 173 13 WEB USABILITY CASE STUDIES Icon Intended Meaning Sun on the Net What’s Happening Sales and Service Technology and Developers User Interpretation “a punctured balloon”, “a snowman”, “a talking collapsing world”, “an idea coming out of a globe” “a parade”, “people at a Sun launch”, “an intensely ugly logo with people in front of it” “gas station”, “diner”, “public restroom”, “store to buy Sun equipment”, “fast food” “Thunder and lightning”, “electric - looks painful”, “person being killed by technology”, “dance machine”, “why Sun developers look bug-eyed?” Table 13.3: User comments on Design icons Figure 13.14: SunWWW Design 174 13 WEB USABILITY CASE STUDIES Figure 13.15: SunWWW Design SunWWW Feedback • New coffee cup design for HotJava • No underlay under top three stories for simpler design • Blue text and bullets were perceived as clickable • However, What’s Happening bar was no longer thought to be clickable! • “Sun on the Net” icon still not working, decided globe had to be round! SunWWW Feedback • Adding trianlge to What’s Happening bar made it clickable • “Technology and Developers” icon still looking too much like a thunderbolt • “Corporate Overview” icon perceived as “Sun’s headquarters suffering earthquake damage” and “a fever chart” • “Sun on Net” icon now round but still misinterpreted: “astronaut in space suit”, “an olive”, and “a golfer trying to hack his way out of the rough”! SunWWW Feedback • Triangle on What’s Happening button a bit too dark to really look engraved • Also, our first professionally illustrated coffee cup looked too much like a nuclear explosion SunWWW Feedback • At last: the perfect home page :-) 175 13 WEB USABILITY CASE STUDIES Figure 13.16: SunWWW Design Figure 13.17: SunWWW Design 176 13 WEB USABILITY CASE STUDIES Figure 13.18: All Nine Iterations 13 WEB USABILITY CASE STUDIES 13.3 177 MSWeb: Microsoft Intranet Site Redesign on Microsoft Intranet site: • Vivian Bliss; Redesigning the Microsoft Corporate Intranet; http://argus-acia.com/acia_event/ bliss_session.html 13.4 Designing Web Applications Web applications, typically implemented in Java or HTML and Javascript, help users get specific tasks done, such as accessing their bank account or signing up for health insurance benefits Here is the story of one such design effort: • Bruce Tognazzini; Trials and Tribulations of Web Application Design; http://www.asktog.com/maxscrns html Bibliography Andrews, K (1996) Browsing, Building, and Beholding Cyberspace: New Approaches to the Navigation, Construction, and Visualisation of Hypermedia on the Internet PhD thesis, Graz University of Technology, Austria http: //www.iicm.edu/keith-phd 121 Apple Computer, editor (1993) Macintosh Human Interface Guidelines Addison Wesley http://devworld apple.com/techpubs/mac/pdf/HIGuidelines.pdf, ISBN 0201622165 (de, uk) 58 Baecker, R M and Buxton, W A S., editors (1987) Readings in Human-Computer Interaction Morgan Kaufmann, San Francisco ISBN 0934613249 (de, uk) Baecker, R M., Grudin, J., Buxton, W A S and Greenberg, S., editors (1995) Human-Computer Interaction: Toward the Year 2000 Morgan Kaufmann, San Francisco ISBN 1558602461 (de, uk) BBC (1995) The Front Desk, 30 minute videotape, BBC OUCP Resources M206/03V http://www.ouw.co.uk/courses/ M206.shtm Benway, J P and Lane, D M (1998) Banner Blindness: Web Searchers Often Miss ”Obvious” Links internetworking http: //www.internettg.org/newsletter/dec98/banner_blindness.html 144 Bias, R G and Mayhew, D J., editors (1994) Cost-Justifying Usability Academic Press ISBN 0120958104 (de, uk) 44 Card, S K., Moran, T P and Newell, A., editors (1983) The Psychology of Human-Computer Interaction Lawrence Erlbaum, Hillsdale, New Jersey ISBN 0898592437 (de, uk) 76 Carroll, J M and Rosson, M B (1987) The Paradox of the Active User In Carroll, J M., editor, Interfacing Thought: Cognitive Aspects of Human-Computer Interaction, chapter MIT Press http://www.cs.vt.edu/˜rosson/papers/paradox pdf 73 Cooper, A (1999) The Inmates are Running the Asylum Sams ISBN 0672316498 (de, uk) 53 Creative Good (2000) The Dotcom Survival Guide http://www.creativegood.com/survival 95 Dillman, D A (1999) Mail and Internet Surveys: The Tailored Design Method Wiley, second edition ISBN 0471323543 (de, uk) 99 Dumas, J and Redish, J (1999) A Practical Guide to Usability Testing Intellect, revised edition ISBN 1841500208 (de, uk) Edwards, C (1999) Sketchy Thing http://advance.aiga.org/timeline/artifacts/artifact3.html 62, 64 Foddy, W (1994) Constructing Questions for Interviews and Questionnaires: Theory and Practice in Social Research Cambridge University Press ISBN 0521467330 (de, uk) 99 Greenberg, S (1997) Foundations and Principles of Human Computer Interaction, An undergraduate HCI course, University of Calgary http://www.cpsc.ucalgary.ca/projects/grouplab/481/ 34 GVU (1998) GVU’s WWW User Surveys http://www.cc.gatech.edu/gvu/user_surveys/ 99, 135 Hackos, J T and Redish, J C (1998) User and Task Analysis for Interface Design Wiley ISBN 0471178314 (de, uk) 43 Helander, M G., editor (1988) Handbook of Human-Computer Interaction North-Holland ISBN 0444705368 (de, uk) 178 Horton, W (1994) The Icon Book Wiley ISBN 0471599018 (de, uk) 125 Instone, K (1997) Human-Computer Interaction Virtual Library http://web.cs.bgsu.edu/hcivl/ Landauer, T (1988) Research Methods in HCI In Helander [1988], chapter 42, pages 905–928 Lee, L (1992) The Day the Phones Stopped Donald I Fine, Inc., New York, NY ISBN 1556112866 (de, uk) 36 Lewis, C., Polson, P., Wharton, C and Rieman, J (1990) Testing a Walkthrough Methodology for Theory-Based Design of Walk-Upand-Use Interfaces In Proc CHI’90, pages 235–242, Seattle, Washinton (1990) ACM 73 Lewis, C and Rieman, J (1993) Task-Centered User Interface Design: A Practical Introduction, Shareware book, University of Colorado, Boulder ftp://ftp.cs.colorado.edu/pub/cs/distribs/clewis/HCI-Design-Book 76 178 BIBLIOGRAPHY 179 Microsoft (1999) Microsoft Windows User Experience Microsoft Press http://msdn.microsoft.com/library/books/ winguide/welcome.htm, ISBN 0735605661 (de, uk) 58 Miller, G A (1956) The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information The Psychological Review, 63(2):81–97 http://www.well.com/user/smalin/miller.html 29 Molich, R., Bevan, N., ian Curson, Butler, S., Kindlund, E., Miller, D and Kirakowski, J (1998) Comparative Evaluation of Usability Tests In Proc UPA98, Washinton, D.C (1998) Usability Professionals Association http://www.dialogdesign.dk/ cue.html 103 Molich, R and Nielsen, J (1990) Improving a Human-Computer Dialogue Communications of the ACM, 33(3):338–348 http: //www.acm.org/pubs/citations/journals/cacm/1990-33-3/p338-molich/ 14, 16 Morkes, J and Nielsen, J (1997) Concise, SCANNABLE, and Objective: How to Write for the Web http://www.useit.com/ papers/webwriting/ 143 Mullet, K and Sano, D (1995) Designing Visual Interfaces SunSoft Press (Prentice Hall) ISBN 0133033899 (de, uk) MyComputer.com (2001) WebSnapshot.com http://websnapshot.mycomputer.com/ 146 Newman, W M and Lamming, M G (1995) Interactive System Design Addison-Wesley http://www.rxrc.xerox.com/ publis/isd/home.htm, ISBN 0201631628 (de, uk) 35 Nielsen, J (1992) Finding Usability Problems Through Heuristic Evaluation In Proc CHI’92, pages 373–380, Monterey, California (1992) ACM 68, 71 Nielsen, J (1993a) Response Times: The Three Important Limits http://www.useit.com/papers/responsetime html 67 Nielsen, J (1993b) Usability Engineering Academic Press, London ISBN 0125184050 (de, uk) 42, 43, 44, 46, 57, 65, 67, 98 Nielsen, J (1994a) Enhancing the Exploratory Power of Usability Heuristics In Proc CHI’94, pages 152–158, Boston, Massachusetts (1994a) ACM 6, 66 Nielsen, J (1994b) Report From a 1994 Web Usability Study http://www.useit.com/papers/1994_web_usability_ report.html 143 Nielsen, J (1995) User Interface Design for Sun’s WWW Site http://www.useit.com/papers/sun/ 166 Nielsen, J (1996) Relationships on the Web, The Alertbox http://www.useit.com/alertbox/9601.html 131 Nielsen, J (1997a) Changes in Web Usability Since 1994, The Alertbox http://www.useit.com/alertbox/9712a html 143 Nielsen, J (1997b) How Users Read on the Web, The Alertbox http://www.useit.com/alertbox/9710a.html 143 Nielsen, J (1997c) Search and You May Find, The Alertbox http://www.useit.com/alertbox/9707b.html 142 Nielsen, J (1998a) Fighting Linkrot, The Alertbox http://www.useit.com/alertbox/980614.html 144 Nielsen, J (1998b) The Increasing Conservatism of Web Users, The Alertbox http://www.useit.com/alertbox/ 980322.html 146 Nielsen, J (1999) Stuck With Old Browsers Until 2003, The Alertbox http://www.useit.com/alertbox/990418.html 146 Nielsen, J (2000a) The Alertbox http://www.useit.com/alertbox/ Nielsen, J (2000b) Eyetracking Study of Web Readers, The Alertbox http://www.useit.com/alertbox/20000514 html 143 Nielsen, J (2002) Heuristic Evaluation http://www.useit.com/papers/heuristic/ Nielsen, J and Landauer, T K (1993) A Mathematical Model of the Finding of Usability Problems In Proc INTERCHI’93, pages 206–213, Amsterdam, The Netherlands (1993) ACM Nielsen, J and Mack, R L., editors (1994) Usability Inspection Methods Wiley ISBN 0471018775 (de, uk) 72, 181 Nielsen, J and Molich, R (1990) Heuristic Evaluation of User Interfaces In Proc CHI’90, pages 249–256, Seattle, Washinton (1990) ACM 11, 66, 68, 69 Nielsen, J and Sano, D (1994) SunWeb: User Interface Design for Sun’s Internal Web http://www.useit.com/papers/ sunweb/ 161 Norman, D (1988) The Design of Everday Things Doubleday, New York ISBN 0385267746 (de, uk) 26, 30, 31 Norman, D (1990) Human Error and the Design of Computer Systems Communications of the ACM, 33(1):681–683 35 Norman, D (1992) Turn Signals are the Facial Expressions of Automobiles Addison-Wesley ISBN 020162236X (de, uk) 180 BIBLIOGRAPHY Norman, D (1993) Things That Make Us Smart Addison-Wesley ISBN 0201626950 (de, uk) Norman, D (1999a) Affordance, conventions, and design affordances-interactions.html 24 interactions, 6(3):38–43 http://www.jnd.org/dn.mss/ Norman, D A (1999b) Banner Blindness, Human Cognition and Web Design internetworking http://www.internettg org/newsletter/mar99/commentary.html 144 Olson, J and Olson, G M (1990) The Growth of Cognitive Modeling in Human-Computer Interaction Since GOMS HumanComputer Interaction, 5(2–3):221–265 76 Perlman, G (1997) The HCI Bibliography http://www.acm.org/˜perlman/hcibib/ Plaisant, C and Wallace, D (1992) Touchscreen Toggle Design, CHI’92 Technical Video Program, University of Maryland http: //www.acm.org/sigchi/video/chi92v.txt 102 Preece, J., Rogers, Y., Sharp, H., Benyon, D., Holland, S and Carey, T (1994) Human-Computer Interaction Addison-Wesley, Reading, MA ISBN 0201627698 (de, uk) Raskin, J (2000) The Humane Interface Addison-Wesley ISBN 0201379376 (de, uk) 76 Rettig, M (1994) Prototyping for Tiny Fingers Communications of the ACM, 37(4):21–27 http://www.enteract.com/ ˜marc/writings/prototyping.zip 60 Rettig, M (1999) Interactive Sketch http://www.enteract.com/˜marc/intersketch/ 62 Robson, C (1994) Experiment, Design, and Statistics in Psychology Penguin, third edition ISBN 0140176489 (de, uk) Rubin, J (1994) Handbook of Usability Testing Wiley ISBN 0471594032 (de, uk) 80 Sano, D (1996) Designing Large-Scale Web Sites Wiley ISBN 047114276X (de, uk) Shneiderman, B (1992) Designing the User Interface: Strategies for Effective Human-Computer Interaction Addison-Wesley, Reading, MA, second edition ISBN 0201572869 (de, uk) Shneiderman, B (1997) Designing the User Interface: Strategies for Effective Human-Computer Interaction Addison-Wesley, Reading, MA, third edition http://www.aw.com/cseng/titles/0-201-69497-2/website/, ISBN 0201694972 (de, uk) Siegel, D (1995) The Balkanization of the Web http://www.dsiegel.com/balkanization/ 132 Siegel, D (1997a) Creating Killer Web Sites Hayden Books, second edition http://www.killersites.com/, ISBN 1568304331 (de, uk) Siegel, D (1997b) Web Wonk: Tips for Writers and Designers http://www.dsiegel.com/tips/ SIGCHI (1998) hcibib/ ACM Special Interest Group on Computer-Human Interaction http://www.acm.org/˜perlman/ Spencer, R (2000) The Streamlined Cognitive Walkthrough Method, Working Around Social Constraints Encountered in a Software Development Company In Proc CHI 2000, pages 353–359, The Hague, Netherlands (2000) ACM http://www.acm.org/pubs/citations/proceedings/chi/332040/p353-spencer/ 73 Sullivan, T (1999) How Much Is Too Much?, All Things Web http://www.pantos.org/atw/35654.html 145 Sun Microsystems, editor (1999) Java Look and Feel Design Guidelines products/jlf/dg/, ISBN 0201615851 (de, uk) 58 Addison Wesley http://java.sun.com/ The Poynter Institute (2000) EyeTracking Online News http://www.poynter.org/eyetrack2000/ 143 thecounter.com (2001) thecounter.com http://www.thecounter.com/ 146 Tognazzini, B (1989) World Builder, 30 minute videotape, Apple 40 Tognazzini, B (1992) TOG on Interface Addison-Wesley, Reading, MA ISBN 0201608421 (de, uk) 58, 78 Tognazzini, B (1995) Tog on Software Design Addison-Wesley, Reading, MA ISBN 0201489171 (de, uk) Tognazzini, B (1999) Maximizing Human Performance, AskTog, March 1999 023MaxHumanPerf.html 79 http://www.asktog.com/columns/ Tullis, T S (1998) A Method for Evaluating Web Page Design Concepts In CHI’98 Summary, pages 323–324, Los Angeles, California (1998) ACM 155 UIE (1998a) As the Page Scrolls http://world.std.com/˜uieweb/scrollin.htm 143 UIE (1998b) Why On-Site Searching Stinks http://world.std.com/˜uieweb/searchar.htm 142 Upsdell, C A (2001) BrowserNews: Statistics http://www.upsdell.com/BrowserNews/stat.htm 136, 137 BIBLIOGRAPHY 181 WAMMI (2000) Web Usability Questionnaire http://www.wammi.com 99 Wharton, C., Rieman, J., Lewis, C and Polson, P (1994) The Cognitive Walkthrough Method: A Practitioner’s Guide In Nielsen and Mack [1994], pages 105–140 73, 74 Wiklund, M., editor (1994) Usability in Practice Academic Press ISBN 0127512500 (de, uk) Winer, B., editor (1991) Statistical Principles in Experimental Design McGraw-Hill, third edition ISBN 0070709823 (de, uk) ... Process Figure 1.1: The nature of Human-Computer Interaction Adapted from Figure of the ACM SIGCHI Curricula for Human-Computer Interaction 1 HUMAN COMPUTER INTERACTION References • Ben Shneiderman;... (de, uk) • Baecker et al; Human-Computer Interaction: Toward the Year 2000; Morgan Kaufmann, 1995 ISBN 1558602461 (de, uk) • Baecker and Buxton; Readings in Human-Computer Interaction; Morgan Kaufmann,... used with kind permission from Tom Tullis, Fidelity Investments ix Human Computer Interaction ? ?Human-computer interaction is a discipline concerned with the design, evaluation and implementation