1. CSC USI
Class Meeting 6
October 3, 2007

2. Outline for Evening One-minute assessment Research project issues
Augmenting GUEPs and CDs
Button analysis
Combine results
Report on GUEPs and CDs
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: seconds
Design B: seconds
Do the data support your hypothesis?
If your results need a statistician, then you should design a better experiment. -- Baron Ernest Rutherford

5. Research Project Issues
Your questions:

6. 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

7. Button Exercise Form button teams for buttons 1 through 7
To enhance understanding of CDs and GUEPs
Form button teams for buttons 1 through 7
Combine results getting
Syntax description
Semantics description
Relevant CDs and GUEPs
Report results

8. 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

9. Themes (2) Users are directed in their approach to a system by
Mental models
And
The cognitive dimensions of understanding (which describes ways of thinking).

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

11. Tangible User Interfaces
What are they?
Definition
Examples

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

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

14. 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

15. 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

16. 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
Tasks include:
Find {route, distance, time} from A to B
Find communities {near to, surrounding} A
Find the set of things (e.g. restaurants, hotels, parks) close to A
Find the end of US 30

17. Next Time
Continue work on research project, completing experimental material and IRB form.
IRB form due Monday, October 8. Submit as attachment.
Read Claburn, Waiting for Google’s gPhone.
Match his opinions against our list of user desires
Compare his ideas with GUEPs and CDs
Choose the components that we should build first.

18. Research Team Meetings