Introduction to CHI

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  • 1. inleiding tot chi erik duval K.U.Leuven http://www.cs.kuleuven.be/~erikd 1
  • 2. 2
  • 3. http://www.slideshare.net/erik.duval 3
  • 4. intro... 4
  • 5. Bad day… http://www.web42.com/badday/
  • 6. Niet onbelangrijk… •http://www.boston.com/campaign2000/vote/florida_voters.htm http://www.ntk.net/nielsen2004/
  • 7. http://www.demorgen.be/dm/nl/991/Multimedia/article/detail/142168/2008/01/22/Bezoekcijfers-voor-VRT-nieuwssite-deredactie-be-gaan-dieperik-in.dhtml
  • 8. Voorbeelden uit jouw leven? • bancomat van andere bank: lukt toch :-) ! • tanken, darm pomp te kort • mappy, te ver gereden want instructies incorrectie • eco-modus: radio afgesloten • tanken (total): touchscreen + knopjes • dampkap: RTFM • kappeldreef: AVnet logo op wegwijzer
  • 9. chi... 13
  • 10. Human-computer interaction “a discipline concerned with the • design, •evaluation, and •implementation of interactive computing systems for human use and with the study of major phenomena surrounding them.quot; [ACM]
  • 11. task organisational & social CHI technology user
  • 12. Usability The effectiveness, efficiency, and satisfaction with which specified users achieve specified goals in particular environments This does not mean you have to create a “dry” design or something that is only good for novices – it all depends on your goals
  • 13. Human Factors
  • 14. Human factors
  • 15. Maar ook • BMW iDrive • 1952 • 11 indicators, 16 controls • 1994 • 35 indicators, 66 controls • 2002 • 17 indicators, 29 controls • “supermouse”: 700 functions
  • 16. • ACM SIGCHI • meer dan 6000 leden, jaarlijkse conferentie • meer dan 2500 deelnemers • tijdschriften • ACM interactions, bulletin, transactions • International Journal of Human-Computer Studies • HCI bibliography
  • 17. The economist – oct. 2004 To be truly successful, a complex technology needs to “disappear” The real test is always the mom test http://www.economist.com/displaystory.cfm?story_id=3307363
  • 18. You are not the user! (if you are the developer)
  • 19. Four Myths Only experts create good designs  experts faster, simple and effective techniques anyone can apply We can fix the user interface at the end  good design is more than just user interface  having right features, building those features right Good design takes too long / costs too much  simple and effective techniques can reduce total development time & cost (finds problems early on) Good design is just cool graphics  graphics part of bigger picture of what to communicate & how
  • 20. If the user does something “wrong”, it is the fault of the system designer!
  • 21. “logical analysis is not a good way to predict people's behavior (nor are focus groups or surveys): observation is the key” “I caution that the time frame for adoption of new technologies is measured in decades, not the months everyone would prefer” Donald A. Norman
  • 22. People unpredictable
  • 23. http://www.cs.berkeley.edu/~jfc/cs160/SP03/ features Chrossing the chasm reliability, convenience “no fuss or bother”
  • 24. Long nose of innovation http://www.businessweek.com/innovate/content/jan2008/id2008012_297369.htm
  • 25. history... 29
  • 26. Command Line Interface 30 PenO 1, les 2, 3 oktober 2007
  • 27. Nog vb? 31 PenO 1, les 2, 3 oktober 2007
  • 28. Grafische gebruikersinterface 32 PenO 1, les 2, 3 oktober 2007
  • 29. WIMP • Windows Icons Menus, and Pointing devices • Eigenschappen • intuitief • consistent • vergeven • beschermen • Maar niet noodzakelijk best voor expert! 33 PenO 1, les 2, 3 oktober 2007
  • 30. D. Engelbart, Augment • Stanford Research Institute • “Uitvinder” van muis, windows, groupware, ... • team naar Xerox PARC • nu: bootstrap institute • http://www.bootstrap.org/ 34 PenO 1, les 2, 3 oktober 2007
  • 31. D. Engelbart, Augment • demo at 1968 Fall Joint Computer Conference • video, microwave transmission, ... • http:// sloan.stanford.edu/ mousesite/ 1968Demo.html • http:// www.youtube.com /watch? v=X4kp9Ciy1nE 35 PenO 1, les 2, 3 oktober 2007
  • 32. Fast forward to … now :) ! Text Text http://hyperscope.org/ http://flash.kmi.open.ac.uk:8080/fm/fmm.php?code=c785a5-890&room=fm890 http://video.google.com/videoplay?docid=-3914718330476864051&q=doug+engelbart 36 PenO 1, les 2, 3 oktober 2007
  • 33. XEROX PARC Star - 1981 37 PenO 1, les 2, 3 oktober 2007
  • 34. Apple Macintosh - 1984 http://en.wikipedia.org/wiki/History_of_the_graphical_user_interface 38 PenO 1, les 2, 3 oktober 2007
  • 35. Windows 1.0 - 1985 39 PenO 1, les 2, 3 oktober 2007
  • 36. Windows 3.1 - 1993 http://en.wikipedia.org/wiki/History_of_the_graphical_user_interface 40 PenO 1, les 2, 3 oktober 2007
  • 37. abundance: snowflake effect... 41
  • 38. food abundance in music travel content ? media ...
  • 39. snowflake in music... nice bootstrapping, too! 43
  • 40. evaluation... 44
  • 41. Criteria voor evaluatie •hoe vaak proberen om doel te bereiken •hoe vaak mensen terugkomen •hoe lang het duurt •het vloekgehalte •resultaat zelf •of er evaluatie moet gebeuren •dikte van gebruikers-manual •vermoeidheid •aantal calls op helpdesk
  • 42. criteria • Usability • Usefulness • Meaning • (esthetic) Qualities • Sociability
  • 43. Criteria • Leertijd • Tijd om taak uit te voeren • Aantal en soort fouten • Tijd dat gebruikers zich herinneren hoe taken te volbrengen • Subjectief gevoel van voldoening bij gebruikers Vaak compromis nodig, explicitering belangrijk!
  • 44. Factoren die invloed uitoefenen •...?
  • 45. Factoren •fysisch •Antropometrie •aanpasbaar indien gebruikers te verschillend •vb. helderheid •cognitief • kennis, inteligentie (?), geheugen, concentratie • vermoeidheid, verveling, stress, angst, leeftijd, ... • persoonlijkheid • Myers-Briggs Type Indicator (skepsis alert!) • Extrovert vs. introvert, denken vs. intuitie, ... • cultureel • leesrichting, taal, etiquette, i18n
  • 46. background... 50
  • 47. http://www.designinginteractions.com/
  • 48. • Ben Shneiderman, Designing the User Interface. Strategies for Effective Human-Computer Interaction. • Jakob Nielsen, Designing Web Usability. • Jakob Nielsen & Marie Tahir, Homepage Usability. • Donald A. Norman, The Invisible Computer & Emotional Design. • Jef Raskin, The Humane Interface. • Peter Morville, Ambient Findability. • Jennu Preece, Yvonne Rogers, David Benyon, Simon Holland & Tom Carey, Human-Computer Interaction. • Alan Dix, Janet Finlay, Gregory Abowd & Russell Beale, Human- Computer Interaction.
  • 49. Questions? http://ariadne.cs.kuleuven.ac.be/wordpress/eduval/ http://www.cs.kuleuven.be/~erikd Thanks! 53