Usability, key factor for the success of web user               interface: an agile approachRoberto DADDA    Lubjana Novem...
Usability“The effectiveness, efficiency and satisfaction withwhich specified users achieve specified goals inparticular en...
Usable,                                                  a many-sided                                                     ...
NOT about colors, fonts...Roberto DADDA      Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
ErgonomicsRoberto DADDA   Lubjana November 7, 2012
Usability is an application of ergonomics,usability    is mandatory when errors are fatal and was    developed in medical,...
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
human processor modelRoberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
●Add value via Web  ●Benefit and usability greater than phone call  ●Find-Choose-How to-Track  ●On site test  ●3.5 visitor...
Roberto DADDA   Lubjana November 7, 2012
✗   After reworking for Christmas +80% (average 40%) ✗   300.000 repeat customers (+67%)Roberto DADDA      Lubjana Novembe...
Roberto DADDA   Lubjana November 7, 2012
Unusable!Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto                                    DADDAOctober 26, 2011   PBZ ­ Zagreb      32
Roberto                                    DADDAOctober 26, 2011   PBZ ­ Zagreb      33
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Surface         Skeleton         Structure         Scope         StrategyRoberto DADDA        Lubjana November 7, 2012
user tasks:         Surface                  • enter numbers                                  • enter text                ...
Surface                                                      task         Skeleton                                    pane...
Roberto                                                          DADDA         Surface         Skeleton         Structure ...
Surface         Skeleton         Structure         Scope         StrategyRoberto DADDA        Lubjana November 7, 2012
Rules  ●Know the user, and You are not the user.  ●Things that look the same should act the same.  ●The information for th...
Do not focus on tools  Tools are like a taxy, use it when needed, pay and              get an other when if neededRoberto ...
Roberto DADDA   Lubjana November 7, 2012
Agile is like                                      to be                                      pregnant, or                ...
We need all the team COMMITED, when u make    eggs and bacon chicken is involved, pig is             committed to the proj...
Roberto DADDA   Lubjana November 7, 2012
We do need a team of cathedral builders, not                just stone carvers!Roberto DADDA    Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
Roberto DADDA   Lubjana November 7, 2012
And now 2 minutes of marketing:                      Our offer!Roberto DADDA     Lubjana November 7, 2012
specify                        AUC         2                                        design                 test           ...
roberto@dadda.it                  www.dadda.it                               robertodaddaRoberto DADDA      Lubjana Novemb...
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Agile for the financial industry - Lubjana 7/11/2012

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Agile for the financial industry - Lubjana 7/11/2012

  1. 1. Usability, key factor for the success of web user interface: an agile approachRoberto DADDA Lubjana November 7, 2012
  2. 2. Usability“The effectiveness, efficiency and satisfaction withwhich specified users achieve specified goals inparticular environments.”● effectiveness: the accuracy and completeness with which specified users can achieve specified goals in particular environments● efficiency: the resources expended in relation to the accuracy and completeness of goals achieved● satisfaction: the comfort and acceptability of the work system to its users and other people affected by its useRoberto DADDA Lubjana November 7, 2012
  3. 3. Usable, a many-sided concept Functional (it does what it is claimed to do) ● Reliable (it works consistently) ● Usable (it works in a way that is consistent with the users expectations) ● Meaningful (it does something important or valuable) ● Pleasurable (it is enjoyable to use) ●Roberto DADDA Lubjana November 7, 2012
  4. 4. NOT about colors, fonts...Roberto DADDA Lubjana November 7, 2012
  5. 5. Roberto DADDA Lubjana November 7, 2012
  6. 6. Roberto DADDA Lubjana November 7, 2012
  7. 7. ErgonomicsRoberto DADDA Lubjana November 7, 2012
  8. 8. Usability is an application of ergonomics,usability is mandatory when errors are fatal and was developed in medical, nuclear and avionics.Roberto DADDA Lubjana November 7, 2012
  9. 9. Roberto DADDA Lubjana November 7, 2012
  10. 10. Roberto DADDA Lubjana November 7, 2012
  11. 11. Roberto DADDA Lubjana November 7, 2012
  12. 12. Roberto DADDA Lubjana November 7, 2012
  13. 13. human processor modelRoberto DADDA Lubjana November 7, 2012
  14. 14. Roberto DADDA Lubjana November 7, 2012
  15. 15. Roberto DADDA Lubjana November 7, 2012
  16. 16. ●Add value via Web ●Benefit and usability greater than phone call ●Find-Choose-How to-Track ●On site test ●3.5 visitors/day ●Dismissing 80% of call center workforceRoberto DADDA Lubjana November 7, 2012
  17. 17. Roberto DADDA Lubjana November 7, 2012
  18. 18. ✗ After reworking for Christmas +80% (average 40%) ✗ 300.000 repeat customers (+67%)Roberto DADDA Lubjana November 7, 2012
  19. 19. Roberto DADDA Lubjana November 7, 2012
  20. 20. Unusable!Roberto DADDA Lubjana November 7, 2012
  21. 21. Roberto DADDA Lubjana November 7, 2012
  22. 22. Roberto DADDA Lubjana November 7, 2012
  23. 23. Roberto DADDA Lubjana November 7, 2012
  24. 24. Roberto DADDA Lubjana November 7, 2012
  25. 25. Roberto DADDA Lubjana November 7, 2012
  26. 26. Roberto DADDA Lubjana November 7, 2012
  27. 27. Roberto DADDA Lubjana November 7, 2012
  28. 28. Roberto DADDA Lubjana November 7, 2012
  29. 29. Roberto DADDA Lubjana November 7, 2012
  30. 30. Roberto DADDA Lubjana November 7, 2012
  31. 31. Roberto DADDA Lubjana November 7, 2012
  32. 32. Roberto  DADDAOctober 26, 2011 PBZ ­ Zagreb 32
  33. 33. Roberto  DADDAOctober 26, 2011 PBZ ­ Zagreb 33
  34. 34. Roberto DADDA Lubjana November 7, 2012
  35. 35. Roberto DADDA Lubjana November 7, 2012
  36. 36. Roberto DADDA Lubjana November 7, 2012
  37. 37. Surface Skeleton Structure Scope StrategyRoberto DADDA Lubjana November 7, 2012
  38. 38. user tasks: Surface • enter numbers • enter text • enter formulas • format cells Skeleton • sort information • filter information • aggregate information Structure • graph data • save data • import data Scope • export data • print • ….. StrategyRoberto DADDA Lubjana November 7, 2012
  39. 39. Surface task Skeleton panes Structure modal dialogs Scope modal wizards StrategyRoberto DADDA Lubjana November 7, 2012
  40. 40. Roberto  DADDA Surface Skeleton Structure Scope StrategyMay 14­15, 2012 Agile Croatia Conference ­ Zadar 40
  41. 41. Surface Skeleton Structure Scope StrategyRoberto DADDA Lubjana November 7, 2012
  42. 42. Rules ●Know the user, and You are not the user. ●Things that look the same should act the same. ●The information for the decision must be there when the decision is needed. ●Error messages should actually mean something to the user and tell the user how to fix the problem. ●Every action should have a reaction. ●Everyone makes mistakes, so every mistake should be fixable. ●Dont overwhelm the user. ●Consistency, consistency, consistency. ●Minimize the need for a mighty memory. ●Keep it simple. ●The user should always know what is happening. ●The more you do something, the easier it should be to do. ●The user should control the system. The system should not control the user. The user is the boss and the system should show it. ●Eliminate unnecessary decisions and illuminate the rest. ●The best journey has the fewest steps. Shorten the distance between the user and the goal. ●User should be able to do what they want. ●Alert users to an error before things get worse. ●Users should always know how to find out what to do next. ●Strive to empower the user, not speed up the system. ●Things that look different should act different. Lund, A. M. (1997). Expert ratings of usability maxims. Ergonomics in Design, 5(3), 15-20. A study of the heuristics design experts consider important for good design.Roberto DADDA Lubjana November 7, 2012
  43. 43. Do not focus on tools Tools are like a taxy, use it when needed, pay and get an other when if neededRoberto DADDA Lubjana November 7, 2012
  44. 44. Roberto DADDA Lubjana November 7, 2012
  45. 45. Agile is like to be pregnant, or u are or u are noT!Roberto DADDA Lubjana November 7, 2012
  46. 46. We need all the team COMMITED, when u make eggs and bacon chicken is involved, pig is committed to the project: We do need pigs!Roberto DADDA Lubjana November 7, 2012
  47. 47. Roberto DADDA Lubjana November 7, 2012
  48. 48. We do need a team of cathedral builders, not just stone carvers!Roberto DADDA Lubjana November 7, 2012
  49. 49. Roberto DADDA Lubjana November 7, 2012
  50. 50. Roberto DADDA Lubjana November 7, 2012
  51. 51. And now 2 minutes of marketing: Our offer!Roberto DADDA Lubjana November 7, 2012
  52. 52. specify AUC 2 design test program design Agile Usability Coaching & CollaborationRoberto DADDA Lubjana November 7, 2012
  53. 53. roberto@dadda.it www.dadda.it robertodaddaRoberto DADDA Lubjana November 7, 2012

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