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Google Earth Tours
User Testing Spatial Content




Richard Treves, GoogleEarthDesign.Blogspot.com
Tuesday, 23rd March 2010
Collaborators

                SPLINT Fellowship

                Paula Englebrecht (Ordnance
                  Survey, UK)
Introduction   My Interest:
                 Public Understanding of Maps
                   (Outreach/Education)
                 Usability of Viz. not Data or App.
               Importance of Design
               Lawn Mower Rule and Animation
                 Literature
               The Test, Results, Interpretation
               Thoughts on Testing
               Conclusion
Nokia‟s
Mistake

  “This is boring."
 “I just slept through
 the last talk, I dreamt
 of Elvis"
 “I’m afraid Elvis has
 left the building"
Just Because We Can…
…Does Not Mean We Should
A Tour   Virtual Flight around
           Landscape
         Layers of Data on/off
         Not just Virtual Globes
         More Usable because:
           Layer reveal
           Location and Scale
Animation Literature   “Tours” = Edu.
                         Animation
                       Empirically tested
                         Usability Best
                         Practices:1

                        1.Audio and Visual (not subtitles)
                        2.Closeness (time and space)
                        3.Friendly (use of „I‟)
                        4.No Chart Junk

                         1] Animation as an Aid to Multimedia Learning, Mayer and Moreno, Ed. Psych. Review 2002 Vol14, p87
“Sit on Lawnmowers are
Lawn Mower Rule       good for transport”
                     – Good for mowing
                         lawns
                     – Not for getting here
                         today
                  “Map precision is always
                      crucial”
                  Not are tours good for
                      Visualising data but
                      when are they good at
                      Visualising data.
                  When should we apply
                      tours?
Narrative Delivery
Tours Applicable   - Intro to DB?
                   Data across multiple
                     scales
                     locations
                   Virtual Flight
                      Segments (VFSs)
                   Animated Viewpoints
                      in Spatial
                      Software (family
                      tree)
Glacial Landscape Teaching
Tours Usability Test   Paper vs GEarth. 5-10
                          minutes.
                       Best practices except audio
                       Qualitative and Quantitative
                         Students tested afterwards
                       Paper vs GEarth Differ by:
                       • GEarth = Engaging
                       • VFSs and Image Quality
                       • Narrative vs Exploration?
Test Results I
                 Quantitative:
                 n=30, GEarth tour better
                 Glacial Interpretation e.g. Identify
                    features elsewhere: T test P=0.19
                 Spatial memory e.g. where was the
                    study site?: T test P=0.46
                 More time spent on GEarth
                 Is GEarth engaging? (8/10)
Test Results II
                  Qualitative:
                  • Generation YouTube: Play Button
                    only
                  • Robust
                  • Image quality
Interpretation
                 GEarth Tours vs paper equivalent:
                 • Indicative Evidence that tours
                   are better in multi-scale situ.
                   – Plus Audio
                 • Engaging (Question, Test Times
                   and Scores)
                 • But Why?
Thoughts on Testing


                      • Above all else:
                        Hallway testing
                      • Lawn Mower Law
                      • Observations for
                        insight but truth is in
                        empirical tests.
• Ran quantitative
Conclusion     usability tests on
               Tours (more!)
             • Found good tours
               application
             • More lit. search
             • Focus in on VFSs
               – Speed
               – Landmarks
             • 3D thematic
               maps
Google Earth Tours
User Testing Spatial Content




Richard Treves, GoogleEarthDesign.Blogspot.com
Tuesday, 23rd March 2010

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Google Earth Tours: Testing spatial content

  • 1. Google Earth Tours User Testing Spatial Content Richard Treves, GoogleEarthDesign.Blogspot.com Tuesday, 23rd March 2010
  • 2. Collaborators SPLINT Fellowship Paula Englebrecht (Ordnance Survey, UK)
  • 3. Introduction My Interest: Public Understanding of Maps (Outreach/Education) Usability of Viz. not Data or App. Importance of Design Lawn Mower Rule and Animation Literature The Test, Results, Interpretation Thoughts on Testing Conclusion
  • 4. Nokia‟s Mistake “This is boring." “I just slept through the last talk, I dreamt of Elvis" “I’m afraid Elvis has left the building"
  • 5. Just Because We Can… …Does Not Mean We Should
  • 6. A Tour Virtual Flight around Landscape Layers of Data on/off Not just Virtual Globes More Usable because: Layer reveal Location and Scale
  • 7. Animation Literature “Tours” = Edu. Animation Empirically tested Usability Best Practices:1 1.Audio and Visual (not subtitles) 2.Closeness (time and space) 3.Friendly (use of „I‟) 4.No Chart Junk 1] Animation as an Aid to Multimedia Learning, Mayer and Moreno, Ed. Psych. Review 2002 Vol14, p87
  • 8. “Sit on Lawnmowers are Lawn Mower Rule good for transport” – Good for mowing lawns – Not for getting here today “Map precision is always crucial” Not are tours good for Visualising data but when are they good at Visualising data. When should we apply tours?
  • 9. Narrative Delivery Tours Applicable - Intro to DB? Data across multiple scales locations Virtual Flight Segments (VFSs) Animated Viewpoints in Spatial Software (family tree)
  • 10. Glacial Landscape Teaching Tours Usability Test Paper vs GEarth. 5-10 minutes. Best practices except audio Qualitative and Quantitative Students tested afterwards Paper vs GEarth Differ by: • GEarth = Engaging • VFSs and Image Quality • Narrative vs Exploration?
  • 11. Test Results I Quantitative: n=30, GEarth tour better Glacial Interpretation e.g. Identify features elsewhere: T test P=0.19 Spatial memory e.g. where was the study site?: T test P=0.46 More time spent on GEarth Is GEarth engaging? (8/10)
  • 12. Test Results II Qualitative: • Generation YouTube: Play Button only • Robust • Image quality
  • 13. Interpretation GEarth Tours vs paper equivalent: • Indicative Evidence that tours are better in multi-scale situ. – Plus Audio • Engaging (Question, Test Times and Scores) • But Why?
  • 14. Thoughts on Testing • Above all else: Hallway testing • Lawn Mower Law • Observations for insight but truth is in empirical tests.
  • 15. • Ran quantitative Conclusion usability tests on Tours (more!) • Found good tours application • More lit. search • Focus in on VFSs – Speed – Landmarks • 3D thematic maps
  • 16. Google Earth Tours User Testing Spatial Content Richard Treves, GoogleEarthDesign.Blogspot.com Tuesday, 23rd March 2010