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