project fragmentation the project fragmentation problem in personal information management bergman,...
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Project Fragmentation
The Project Fragmentation Problem in Personal Information Management
Bergman, et al
CHI 2006 proceedings
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Fragmentation
Information stored by format, rather than by purpose Documents files in folders E-mail in different folders Bookmarks in a separate hierarchy
When you want all the information about a particular project or activity, what do you do?
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Research study
Basic question: Do people tend to work on materials based on format
(as supported by current systems) or by purpose (as the researchers assume.)
Participants: 20 adults Mix of PC (most) and Mac (1) and combination
experience Materials collected:
Interviews, screenshots, questionnaires
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Research Questions
How do personal computer users tend to talk about their information organization -- in terms of technological format or in terms of projects?
To what extent do users work on projects involving information items of different formats
How much overlap is there between the three folder hierarchies
Do users tend to classify their information according to format or porjects
To what extent does interface design affect the project fragmentation problem?
What are users’ attitudes towards integration of the different hierarchies?
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Method
Each subject was interviewed for about 90 minutes, giving the interviewer a tour of the subject’s computer system, explaining the organization.
Screenshots were captured during the “tour” The interview was taped, transcribed, and
analyzed. A questionnaire was administered after the
interview.
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Results: How do users talk aobut information organization? Data: the interview transcript
Two judges reviewed it, looking for references to project or format that were not results to direct questions from the interviewer. Only cases where the judges agreed were counted
Results: On average, 70.52% (SD= 16.35) of the references were to projects, 28.26% (SD= 15.22) were to formats
Conclusion: Users think of their information organization in terms of projects rather than formats
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Results: Projects involving multiple formats Data: Screen captures from the day before
the interview (using history and recent documents files) Participants annotated each reference with the relevant project.
Result: on average, 55.57% (SD = 32.61%) of items referred to a project which also had an item in a different format set.
Conclusion: Users have information related to a particular project in more than one format.
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Result: Extent of overlap among the three types of format Data: Screen capture of the folder
hierarchies. Overlap defined as folders of the different formats that refer to the same project Only root level folders examined
Results: 19.79% of folders overlap (SD = 19.38)
Conclusion: About one fifth of the folders corresponded to a folder of the same project information in another format
Note the difference between this and the previous one -- overlap by project vs. overlap by information format
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Result: Do users classify by format or project? Data: Examination of the 968 folders found
among the participants Result: Project folder names (M=79.94%, SD
11.91) significantly higher than the proportion of format folder names (M = 6.16, SD = 7.3)
Conclusion: Users tend to classify their information according to project more than to formats
I’m not sure what is meant by “format folder names”
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Result: Effect of interface design Data: Questionnaire Results: Users mix documents of different
types in one folder, but rarely save emails and bookmarks in these document folders.
Conclusion: Interface design guides location of information storage.
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Result: Attitudes toward integration of the hierarchies? Data: Questionnaire Result: Average answer was 3.74 (on a 5-
point scale) Conclusion?
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Possible integration solutions
Three approaches Integration through search
Find items of multiple formats from one search Users seem to prefer navigation (see previous paper on
that study) Integration through additional structure
Shortcut to actual item stored in a separate structure. Single Hierarchy
All project related items, of whatever format, stored together.
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Proposed single hierarchy solution
QuickTime™ and a decompressor
are needed to see this picture.
All items of one project together, but separated by tabs
What do you think of this strategy?