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Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
Thesis Defense - A Tale of Two Sites
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Thesis Defense - A Tale of Two Sites

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Masters Thesis defense for Sameer Ahuja, July 17th, 2009. This presentation was live streamed on ustream.tv and Second Life. The video recording of the Ustream.tv livecast is available here: …

Masters Thesis defense for Sameer Ahuja, July 17th, 2009. This presentation was live streamed on ustream.tv and Second Life. The video recording of the Ustream.tv livecast is available here: http://www.ustream.tv/recorded/1823531

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  • 1. A Tale of Two Sites An Explora7ve Study of the Design and Evalua7on of Social Network Sites  Sameer Ahuja 1
  • 2. Overview Instant Background 2
  • 3. Building soCware that is deployed to a community  is different from building soCware that is deployed to  individual users 3
  • 4. [...] the success and growth of social so5ware stems from the  con7nuous tango between technological advancement and  technological advancement incremental user par3cipa3on, and the net product is neither  incremental user par3cipa3on cleanly social nor technological in nature. ‐ boyd 4
  • 5. technological advancement incremental user par3cipa3on 4
  • 6. (features) 5
  • 7. ((features) + sociological effects) 6
  • 8. So when we design, we need to think about the  sociological effects we are hoping to achieve. 7
  • 9. And when we evaluate, we need to see if we are  achieving those effects. 8
  • 10. In this thesis we specifically look at the problem of  forma&ve evalua7on of social network sites.  9
  • 11. Forma7ve? 10
  • 12. When the cook tastes the soup, thats forma7ve;  when the guests taste the soup, thats summa7ve. 11
  • 13. But why do it, and why do it at a forma7ve stage? 12
  • 14. But why do it, and why do it at a forma7ve stage? To find fundamental issues and glaring  omissions in the support of social ac7ons on  the social network site 12
  • 15. To reduce the risks involved in evalua7ng  only when the soCware is in the wild  But why do it, and why do it at a forma7ve stage? To find fundamental issues and glaring  omissions in the support of social ac7ons on  the social network site 12
  • 16. A few defini7ons 13
  • 17. Social Network Sites 14
  • 18. We define social network sites as web‐based services that  allow individuals to  (1) construct a public or semi‐public profile within a  bounded system (2) ar7culate a list of other users with whom they  share a connec7on  (3) view and traverse their list of connec7ons and  those made by others within a system ‐boyd, Ellison 15
  • 19. 16
  • 20. Social Networking Sites 16
  • 21. Social Affordance 17
  • 22. Social Affordance The quality of ar7facts in any space physical or  virtual, which invite and facilitate social interac7on  among the par7cipants in that space ‐ Howarth, Pyla, Yost, and Haciahmetoglu 18
  • 23. Social Affordance The quality of ar7facts in any space physical or  virtual, which invite and facilitate social interac7on  among the par7cipants in that space ‐ Howarth, Pyla, Yost, and Haciahmetoglu 18
  • 24. Social Affordance The quality of ar7facts in any space physical or  virtual, which invite and facilitate social ac7ons  among the par7cipants in that space 19
  • 25. Social Ac7ons We define social ac7ons in the context of social  network sites as ac7ons that affect the social capital  of the community using the site 20
  • 26. Social Capital We use James Coleman’s defini7on, which suggests  that social capital is anything that facilitates individual  or collec7ve ac7on, generated by networks of  rela7onships, reciprocity, trust, and social norms. 21
  • 27. Colloki / Slurp! CATspace h[p://slurp.cs.vt.edu h[p://apps.facebook.com/catspace 22
  • 28. Colloki • Centered around local delibera7on • Aggrega7on and dissemina7on of content  from and to distributed sources • Uses a set of social and organiza7onal  features to promote engagement 23
  • 29. CATspace • Computer Science Assignment Repository • Bring instructors from different ins7tu7ons  into a common plaborm (Facebook) • Leverage already exis7ng social connec7ons  on Facebook • Use social features to promote collabora7on  and itera7on over assignments 24
  • 30. 25
  • 31. Social Ac7ons 26
  • 32. Social Browsing “finding new people” 27
  • 33. Social Search “finding more about people you know” 28
  • 34. Interac7on 29
  • 35. Sharing content 30
  • 36. Collabora7on 31
  • 37. Features 32
  • 38. Tagging Social Browsing Social Search Interac7on Sharing Content Collabora7on High High High Good 33
  • 39. Ac7vity Streams Social Browsing Social Search Interac7on Sharing Content Collabora7on High High 34
  • 40. User Profiles Social Browsing Social Search Interac7on Sharing Content Collabora7on High High 35
  • 41. Comments Social Browsing Social Search Interac7on Sharing Content Collabora7on Good Good High Good 36
  • 42. Ra7ngs / Votes Social Browsing Social Search Interac7on Sharing Content Collabora7on Good 37
  • 43. Design Expecta7ons Social Browsing Social Search Interac7on Sharing Content Collabora7on Tagging High High High Good Ac7vity  High High Streams Profiles High High Comments Good Good High Good Ra7ng/Votes Good 38
  • 44. Study 10 Par7cipants Graduate Students at Virginia Tech Colloki: 5 par7cipants CATspace: 5 par7cipants Graduate Students in Departments  Graduate Students in Department of  other than Computer Science at Virginia Tech Computer Science at Virginia Tech 39
  • 45. Protocol • Pre‐Evalua7on Survey on usage of SNS,  demographics • 5‐Minute Video demo of the soCware • Set of tasks to perform on the soCware • Post‐Evalua7on Ques7onnaire 40
  • 46. Simulated Community • Derived from posts and ac7vity of alpha‐ stage users, represented ‘expected’ use. • First fold rule 41
  • 47. Results 42
  • 48. Overall Usability 43
  • 49. Overall Usability 43
  • 50. Overall Usability 43
  • 51. Overall Usability 44
  • 52. Overall Usability 44
  • 53. Overall Usability 44
  • 54. “The Tagging thing was odd. I had to click on a tag which took  me to a page that had all posts with the tag. Then from there I  had to click on one of the posts, then go to its author and see if  he or she had that tag in the tag cloud. That’s cumbersome.” ‐ Colloki Par7cipant 45
  • 55. “I think this profile looks a liFle empty. You can have a list of  users with similar stuff here, kindof like facebook friend list.  Actually, you could show the person's facebook friends (who  are on CATspace) right here.” ‐ CATspace Par7cipant 46
  • 56. Tagging 47
  • 57. Tagging 47
  • 58. Ac7vity Streams 48
  • 59. Ac7vity Streams 48
  • 60. Ac7vity Streams 48
  • 61. Ac7vity Streams 49
  • 62. Ac7vity Streams 49
  • 63. Ac7vity Streams 49
  • 64. Ac7vity Streams 49
  • 65. Colloki Which one of the five topics listed on the homepage do you  think has been the most ac7ve recently amongst the slurp  community?  CATspace Which is the latest assignment that he (Steve Edwards) has  published?  50
  • 66. In almost all cases in CATspace (And all cases in  Colloki), par7cipants u7lized other user interface  elements to find their answers. 51
  • 67. 52
  • 68. User Profiles 53
  • 69. User Profiles 53
  • 70. User Profiles 53
  • 71. User Profiles 53
  • 72. “[...] but where can I leave him a message? Do I have to go to  the Facebook profile for that? How do I go to the Facebook  profile from here?” ‐ CATspace Par7cipant 54
  • 73. Comments 55
  • 74. Ra7ngs/Votes 56
  • 75. Ra7ngs/Votes 56
  • 76. Ra7ngs/Votes 56
  • 77. Ra7ngs/Votes 56
  • 78. Ra7ngs/Votes 56
  • 79. Ra7ngs/Votes 56
  • 80. Ra7ngs/Votes ? 56
  • 81. Discussion • Collabora7on ac7on didn’t have suppor7ng  tasks • Could have broadened the number of  ac7ons, and custom‐chosen ac7ons for  features 57
  • 82. Future Work • Valida7ng / Evalua7ng user responses to  actual usage • Broader taxonomy of ac7ons • Figuring out how to do this without  overloading the par7cipants with ques7ons 58
  • 83. Thank You! Q & A 59

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