02 unusability
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Lectures for the course "Ergonomics applied to the usability of web pages and apps" held at the School of design of Politecnico di milano in the first semester of 2021-2022 academic year
02 unusability
- 1. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 1 ERGONOMICS APPLIED TO THE DESIGN OF USABLE WEB PAGES AND APPS Roberto DADDA and Paolo NEGRI
- 2. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 2 Unusability Understanding usability by observation of unusability Unusable = not usable
- 3. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 3
- 4. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 4
- 5. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 5
- 6. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 6 Wall of gloves UNIVERSAL DESIGN Betsey & Sam Farber
- 7. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 7 Symptoms
- 8. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 8 Official and user generated manuals
- 9. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 9
- 10. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 10
- 11. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 11 Instructions are inside! To know how to open I must open!
- 12. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 12
- 13. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 13
- 14. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 14
- 15. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 15 Cryptic messages
- 16. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 16 Affordance An affordance is a quality of an object, or an environment, which allows an individual to perform an action. For example, a knob affords twisting, and perhaps pushing, while a cord affords pulling.
- 17. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 17
- 18. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 18 Good effordance!
- 19. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 19
- 20. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 20 Usage models!
- 21. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 21
- 22. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 22
- 23. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 23 Real word mimic
- 24. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 24
- 25. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 25 Usual conventions
- 26. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 26
- 27. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 27 Open the door
- 28. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 28
- 29. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 29 Maintenance
- 30. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 30 Prospectives
- 31. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 31 Reserved to men with belly who likes BBQ?
- 32. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 32 No user models
- 33. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 33
- 34. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 34 In love with technology and design
- 35. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 35
- 36. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 36 Textual communication
- 37. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 37 Translation traps!
- 38. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 38
- 39. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 39
- 40. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 40
- 41. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 41
- 42. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 42 Kiss!
- 43. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 43 Usage models again and again!
- 44. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 44
- 45. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 45
- 46. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 46
- 47. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 47
- 48. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 48
- 49. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 49 Inside technology outing
- 50. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 50 Interface patterns
- 51. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 51 Mental fenching
- 52. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 52 Too much fantasy
- 53. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 53 Color coding consistency
- 54. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 54 Usability comes by design!
- 55. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 55
- 56. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 56 Collision
- 57. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 57
- 58. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 58
- 59. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 59
- 60. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 60
- 61. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 61 Messages
- 62. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 62
- 63. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 63 Users models again
- 64. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 64 Old constrains
- 65. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 65
- 66. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 66 Love for technology
- 67. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 67
- 68. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 68
- 69. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 69 The Kamasutra effect
- 70. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 70
- 71. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 71 Information overload
- 72. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 72 Not always easy
- 73. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 73
- 74. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 74
- 75. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 75 Going beyond usability
- 76. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 76 Cocooning
- 77. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 77
- 78. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 78
- 79. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 79
- 80. www.dadda.it roberto@dadda.it Excellence in usability 1st semester 2021-2022 80 Usability Roberto DADDA roberto@dadda.it www.dadda.it Skype, Facebook e Twitter robertodadda