The document describes a study of Pagelinker, a tool that integrates contextual bookmarks into a browser. It was designed through participatory design with biologists to help with web page revisitation during data analysis tasks. An evaluation with 12 biologists found that using Pagelinker reduced task completion times by 28%, reduced clicks by 22%, and reduced page loads by 38%, helping users complete tasks more efficiently.

1. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Pagelinker
Integrating contextual bookmarks into a browser
A.Tabard, W.Mackay, N.Roussel, C.Letondal
InSitu,
INRIA & LRI, Institut Pasteur
May 1, 2007
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 1/21

2. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
PageLinker videos
Looking for:
Paper format Proteins
Hotels
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 2/21

3. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Presentation Overview
Web page revisitation
Participatory Design with biologists
Contextual Bookmarks
Evaluation
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 3/21

4. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Revisitation and biologists
Heavy web users
Go from on website to another
to analyse data
Use a lot of online forms, and
copy/paste to transfer data
Bookmarks and history helpful
but not enough
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 4/21

5. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Purpose
Contextual bookmarks
are bookmarks/favorites specific to a page or set of pages.
Associate web pages together
Help users chain web pages
Improve web page revisitation
Contextualise web navigation
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 5/21

6. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Purpose
Contextual bookmarks
are bookmarks/favorites specific to a page or set of pages.
Associate web pages together
Help users chain web pages
Improve web page revisitation
Contextualise web navigation
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 6/21

7. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Web page revisitation tools
Literature
from 46% to 81% of
pages are revisited
[Weinreich & al 2006], [Cockburn & al 1999]
WebView, [Cockburn & al 1999]
Padprints, [Hightower & al 1998]
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 7/21

8. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Web page revisitation tools
Everyday browsers:
History
Bookmarks
URL drop down menu
Search Engines
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 8/21

9. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Preliminary Study of Biologists
20 biologists / bio-informaticians interviewed
Strong habits:
smooth integration in their workflow
Exploratory navigation:
interaction
Redundancy:
need to manage different versions of the same data
Data flows:
copy/paste to chain steps
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 9/21

10. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
PageLinker Participatory Design
Supporting biologists’ process of analysing web-based data by
associating related web pages.
4 iterations in a
participatory design process
links automatically created
through copy/paste events
co-adaptation
shown manual linking
Contextual Bookmarks
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 10/21

11. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Evaluation Field Expertiment
limited time-series, field experiment
within-subjects design, with one factor
4 iterations, once a week during one month
1. Firefox,
2. Firefox + PageLinker,
3. Firefox,
4. Firefox + PageLinker.
at users’ (12) workplace, on their own browser
15 minutes scenario, illustrating everyday web navigation
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 11/21

12. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Evaluation Scenario
15 minutes scenario,
illustrating everyday web navigation
1: Database search
(NCBI)
2,3: Parallel exploration
(Genemark, Genescan)
4: Comparison
(bl2seq)
5: Analysis and visual scan
(Blast)
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 12/21

13. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Results - time
task completion time was 28% shorter (p < 0.01)
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 13/21

14. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Results - clicks
22% fewer clicks occurred (p < 0.01)
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 14/21

15. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Results - page loads
38% fewer pages loaded (p < 0.01)
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 15/21

16. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Results
Some explanations
fewer intermediate pages visited
fewer searches
more accurate positioning
greater understanding
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 16/21

17. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Conclusion
Personal web of relevant pages
Contextual bookmarks improve revisitation
Keep users in control
3-month follow-up: 2/3 were still using it
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 17/21

18. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Authors
InSitu lab: http://insitu.lri.fr/
download: http://rabidfox.mozdev.org
A.Tabard: http://www.lri.fr/∼tabard
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 18/21

19. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
RDF datastructure
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 19/21

20. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Workshop
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 20/21

21. Demo Web page Revisitation Participatory Design of PageLinker in situ Evaluation Questions
Navtracer: Firefox event logger
Improve the very limited browsers’ history
Need for detailed interaction log
Generated by the system through a Firefox extension
Know what you are interested in
A.Tabard, W.Mackay, N.Roussel, C.Letondal: Pagelinker, Integrating contextual bookmarks into a browser 21/21