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CSC 8570 -- USI

CSC 8570 -- USI. Class Meeting 6 February 17, 2009. Outline for Evening. One-minute assessment Research project issues Table creation revisited Augmenting GUEPs and CDs Button analysis Course themes reprise Edge and Blackwell Careful reading Major concepts. One Minute Assessment.

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CSC 8570 -- USI

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  1. CSC 8570 -- USI Class Meeting 6 February 17, 2009

  2. Outline for Evening • One-minute assessment • Research project issues • Table creation revisited • Augmenting GUEPs and CDs • Button analysis • Course themes reprise • Edge and Blackwell • Careful reading • Major concepts

  3. One Minute Assessment Do not put your name on the paper On one side of the paper, list • The two most important concepts that you have learned so far. On the other side of the paper, list • The thing (or things) that you are most confused about.

  4. Research Project Issues My question: • Suppose your hypothesis says that design A is faster than design B. • You gather timing data from a number of subjects (say N=23) • You compute the average total task time (summed over a number of tasks) • Design A: 13.68 seconds • Design B: 15.12 seconds • Do the data support your hypothesis? • What is the negation of the previous statement? If your results need a statistician, then you should design a better experiment. -- Baron Ernest Rutherford

  5. Research Project Issues • Your questions:

  6. Table Creation Revisited Comments on GOMS analysis of creating the power of 2 table: • Analysis nicely done • Several commented on the issue of where to start • Some included the steps necessary to produce nice formatting and to print the result

  7. Table Creation (2) • Interesting semantic question arose • Relevant to Consistency GUEP • Related questions in spreadsheet and word processing systems • In a spreadsheet, which cell becomes active when the user taps • Tab • Enter • another navigation key

  8. Table Creation (3) • In a word processing system, when entering data into a table, which cell becomes active when the user taps • Tab • Enter • Another navigation key

  9. Augmenting GUEPs and CDs Our goals: • Rephrase GUEPs and CDs, if necessary • Develop examples of interface items described by GUEPs and CDs • Relate the approaches embodied in GUEPs and CDs See the handout for a summary of GUEPs and CDs

  10. Button Exercise To enhance understanding of CDs and GUEPs • Form button teams for buttons 1 through 8 • Combine results getting • Syntax description • Semantics description • Relevant CDs and GUEPs • Report results

  11. Themes • Models, theories, frameworks Form a foundation for understanding • What users want (What do they want?) Which is interpreted by the • Design principle hierarchy • GUEPs • General design principles • Implementable design guidelines

  12. Themes (2) Users are directed in their approach to a system by • Mental models • Problem space version: Set of states and paths from one state to the next leading to a solution • Theory version: What users believe to be true about particular domains, devices, or systems And • The cognitive dimensions of understanding (which describes ways of thinking).

  13. Themes (3) We have devised a path from abstraction to implementation • Cognitive dimensions • GUEPs • Design principles • Task analysis

  14. Tangible User Interfaces • What are they? • Definition • Examples

  15. TUI (2) • What is the power of a WIMP interface? • Is the analysis (done by Edge and Blackwell) of its actions correct?

  16. TUI (3) • What is the power of a TUI? • What does “power” mean in this context?

  17. TUI (4) Top level concepts • Physical layer; physical tokens • Aligning tokens; lines of tokens • Stacking tokens • Virtual layer • Synchronization with physical layer • Feedback: visual, auditory, tactile • Abstraction of time • Virtual – Physical Level • Degree of embodiment • Degree of synchronization • Degree of coherence

  18. TUI (5) • Manipulable solid diagrams • Tokens; token aggregation • Object order • Continuous values • Token association • Superior to WIMP • uses DM more effectively • uses D of F with hands more efficiently

  19. Example • What do you want from a mapping system? • Does this match with what the system provides? • Explore • Mapquest • Google Maps • Yahoo Maps • Mappy.com • AAA.com • Microsoft Streets and Trips

  20. Next Time • Continue work on research project, completing experimental material and IRB form. • IRB form due Tuesday, February 24. Submit as email attachment. • Read Claburn, Waiting for Google’s gPhone. • Match his opinions against our list of user desires • Compare his ideas with GUEPs and CDs • List those ideas that have been implemented in the last 18 months. • Which features should we implement next?

  21. Research Team Meetings

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