1. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Curvature Dial: Eyes free parameter entry for GUIs mc schraefel, Graham Smith, Patrick Baudisch IAM Group, U of Southampton Microsoft Research

2. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip DEMO You can download it now

3. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Curvature Dial What it is Motivation Related work Radial scroll Virtual Scroll Ring Bonus material Test Suite Comparisons Live Demo (Audience Participation) Future Questions Conclusions Questions

4. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Motivation

5. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Baudisch, et al Dragand- Pop and Drag-and-Pick Interact 2003 Hinckley, K., et al. Quantitative Analysis of Scrolling Techniques. CHI’02 Developed to address problem of scrolling on touch-based devices, like tablets and wall displays Cosθ=AB / |A||B| Motivation

6. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Related Work

7. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Radial Scroll Smooth, variable-speed scrolling in one dimension for stylus/touch input

8. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Evans, Tablet-Based Valuators That Provide One, Two, or Three Degrees of Freedom. Computer Graphics Taking advantage of the Vernier Effect

9. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip But Lo! A problem Jump, go ahead and...

10. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Curvature Dial: for real value, eyes-free parameter entry - in particular for touch-screen input. - eyes-free extension for techniques like Guimbretiere and Winograd’s FlowMenus

11. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip UIST05: the year of the dial Radial Scroll (pre Curvature Drag) Virtual Scroll Ring

12. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Comparison with Virtual Scroll Ring Radial/CurvatureVSR Uses curvature around a point; low processing requirements Uses distance travelled around circumference Evaluation: Cockburn and Savage-like, target acquisitions (headers/images) Evaluation: Hinckley et al. reciprocal framing Vernier EffectInverse Tested: touch/stylus input on 2 platforms Tested: desktop VSR against mouse wheel on laptop

13. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip The Pilot Studies Contributions by Pat, mc and Sacha Brostoff, Ray Cooke (Southampton) Tomer Mocovich (Brown) When Where and How

14. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Questions How do the techniques compare for stylus based computing? How do they work on distinct platforms? How do different distances effect?

15. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Things NOT looking at How to invoke How to go in multiple directions Want to focus on where and what contexts are most appropriate So…series of pilot studies

16. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Studies: Zoom and Scroll SCROLLING Compare Dialing techniques against scroll bars for scrolling: FACTORS: distance, platform ZOOMING Compare Dialing techniques against stroke (hand tool-like eyes free stroke): FACTORS: distance, platform

17. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Platforms

18. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Test Suite Compare Dial types for scrolling/zooming and variable distances

19. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Movement Time for scrolling task on Smartboard Error rates for the Smartboard task Study 1: scrolling, smartboard

20. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Lessons Learned: Study 1 Scroll bars win on the large screen, but VSR significantly better than other dials VSR more learnable: big distances, big circles seem more learnable than the Vernier approach of small circles Problem with Vernier approach may be implementation issues

21. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Study 2: Scrolling/PDA Long Distance Lessons Learned: PDA is a useful space for dialing - interesting trade-offs on error performances Time Errors

22. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Study 3: Zooming, Smartboard Lessons Learned Stroking has some interesting properties to explore: competes with VSR Great performance, but people prefer VSR Observe: short little multiple, rather than long strokes Time Errors

23. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Study 4: Zooming, PDA Size Stroking more efficient; errors about the same; Virtual Scroll Ring preferred Time Errors

24. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Next Steps from studies Curvature Dial against VSR (both non-accelerated) scrolling, four distances: Pick a winner and run with it Winner accelerated vs. non-accelerated, again scrolling, four distances: pick a winner and run with it Hand tool against accelerated hand tools: pick a winner winner hand tool against winner dial just scrollbar: four document lengths and three display sizes and four distances: where does it break Winner incremental technique vs. scrollbar vs. combined technique, four document lengths and four distances, three display sizes

25. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Conclusions Dialing is worth investigating for PDA’s especially VSR is a strong favorite Vernier needs to be revisited Keep Checking: test suite will be updated regularly Thoughts/ideas welcome

26. Try It: http://www.mytea.ecs.soton.ac.uk/dial/testsuite/scrollDemo.zip Questions Thank you ( to Ed and Jan especially!). (Pat last seen answering questions)