phd student conference
DESCRIPTION
A brief overview of my PhD research into how amateur volunteered information can enhance the user experience of online geographic information.TRANSCRIPT
Christopher ParkerThe Joy Of Volunteered Information
Christopher J. Parker
WWW.USERGENERATEDDESIGN.COM
WWW.MOBRO.CO/CHRIS210
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IntroductionWhat is VGI and PGI?
Study 1USER PERCEPTIONS OF VGI
• Papers • An Exploration of Volunteered Geographic Information, GISRUK 2010• Understanding the Volunteer in VGI, Slideshare• Characteristics of VGI Stakeholders, Online
Study 1Study Aims
• What are the different characteristics of the key users?
• Understand how different users perceive VGI, and the differences between them.
• What is the nature of VGI?
Consumers Professionals Special Interest Groups
Local Communities
Study 2• Papers
• The Role Of VGI And PGI In Outdoor Activities, Applied Ergonomics• Advantages Of VGI From A Human Factors Perspective, Transactions in GIS• Relevance of Volunteered Geographic Information In A Real World Context, GISRUK 2011
THE ROLE OF VGI AND PGI IN OUTDOOR ACTIVIIES
Study 2Study Aims
• How VGI and PGI offer different benefits to the end user in a real world scenario
• The strengths and weaknesses of VGI and PGI relative to how they meet the information requirements of the user’s tasks and activities
• How VGI and PGI may be effectively integrated to produce highly usable and effective applications.
Study 2Participants
• Need to critically evaluate information
• Can be bounded in as a simple user group
• Make use of PGI as well as generating and utilising VGI
• Allow for scalable, in depth investigation
• Be fun to talk about at presentations
Study 2Methodology
• Multi Methods [qualitative]• Focus Groups• Participatory Observation• Diary Studies
• Non-Probability Sampling• 2 years experience• Familiar with trip planning• User of VGI and PGI
• Number• 32 kayakers [focus groups]• 100 + participants [observations]• 4 diaries on 2 trips
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10/04/2023
Study 3 & 4THE IMPACT OF VGI ON USER JUDGEMENT
Study 3 & 4Study Aims
• How VGI and PGI offer different benefits to the end user in a real world scenario
• The strengths and weaknesses of VGI and PGI relative to how they meet the information requirements of the user’s tasks and activities
• How VGI and PGI may be effectively integrated to produce highly usable and effective applications.
Study 3 & 4Participants
• Need to critically evaluate information
• Can be bounded in as a simple user group
• Make use of PGI as well as generating and utilising VGI
• Critically assess information for risk management
Study 3 & 4Methodology
• Study 3• Observation
• VGI: Generate Data Set• Literature Review
• PGI: Pool data
• Study 4• Mono Methods• Experimental• Online• Altering data gathered to influence user
10/04/2023
Information In Map
PGI PGI + VGI
Participant Told What
Map Contained
PGI Group 1 Group 2
PGI + VGI Group 3 Group 4
Quality Authority Usability
Good Trustworthy Usefulness
Accurate Credible Clear
Current Reliable Efficient
Useful Official Satisfaction
Important Authority
Quality Authority Usability (1)
Good Trustworthy Usefulness
Accurate Credible Clear (2)
Current Reliable Efficient
Useful Official Satisfaction (3)
Important Authority
Quality Authority Usability (1)
Good Trustworthy Usefulness
Accurate Credible Clear (2)
Current (4) Reliable Efficient
Useful Official Satisfaction (3)
Important Authority
Fig 1. Fig 2.
Fig 3. Fig 4.
Study 3 & 4Key Outcome
• Impact of Data Provided• Enhanced Usability in clarity and satisfaction• Including VGI doesn’t increase perceptions
of authority or quality
• Impact of ‘placebo’• Enhanced perceptions of currency• Knowing its VGI doesn’t make it more or less
authoritative or usable
Finishing Points?
Finishing PointsKey Outcome
• All user groups perceive VGI differently• Understand the user, no universals
• VGI and PGI are just information• Not the magic early literature talked about
• The greatest potential to influence the user experience is during planning
• We should question the hype around mobile communication devices
Finishing PointsKey Outcome
• More descriptive compared to PGI’s objective• Helps provide an additional perspective not
offered traditionally
• In consumers• The perception of VGI had little impact on
assessment of information• But the content of VGI is unique and helps
increase the usability of the mashup