1. CSC 8570 -- USI Class Meeting 9 October 31, 2007

2. Boo!

3. Report from China  Franny  Brian

4. World Usability Day  Thursday, November 8, 2007 –Temple University: 10:00 am – 4:00 pm –University of Pennsylvania: 6:30 – 9:00 pm  Promote usability usability

5. Perfect Phone Functions:  Publish GPS coordinates –By extension, incorporate knowledge of GPS coordinates into wayfinding activities  Calls from certain numbers trigger email  Record live audio to MP3 file on remote server

6. Perfect Phone (2)  Play prerecorded messages at various times  Use templates for repeated tasks –Making a restaurant reservation

7. Publish GPS Coordinates  Task: Send coordinates –Solution –Issues  Task: Display map –Get directions –Locate contact  Task: Feature control

8. Calls Trigger Emails  Task: Missed call  Task: Voice mail –Includes voice recognition translation of text  Task: Controls  Interface design Interface design Interface design

9. Record Live Audio  Task: Record to file  Task: Save to server

10. Play Prerecorded Messages  Task: Record message  Task: Set time or times to play –Recurring events  Task: Message management  Task: Time management  Interface Interface

11. Template for Restaurant Reservations  Search parameters –Use GPS awareness  Search results –Order in list  Reservation  Interface Interface

12. Interface Evaluation Models and techniques  GOMS analysis  Keystroke Level Model  Cognitive dimensions of notation  Hierarchy of design principles  Task analysis  Layout appropriateness  PIE model

13. Interface Evaluation (2) Measurements  Time  Counts  Geometry  Satisfaction

14. Interface Evaluation (3) Musike Scoring System  Developed for menu-based systems  Modified for web pages  Works well in complex environments  Provides weighted sum of scores of individual factors  Each individual factor to be based on a measurable design principle

15. Example -- AWSP  Evaluates web sites  Based on Jakob Neilsen’s design principles  Rewritten by Lea Taylor  Case Study Case Study Case Study

16. Web Site Examples  www.espn.com www.espn.com  www.mckeesport.org www.mckeesport.org  www.allentownpa.org www.allentownpa.org

17. Making Connections Case Study: History facility of a document producing system How do we understand the system in light of our approach based on models?

18. History in a Document System  GOMS  Fitt’s Law  Cognitive dimensions  GUEPs  Task analysis

19. History in a Document System (2) Rough description of history:  What does the history do?  How is it invoked? Model of history:  Mathematical formality  GOMS

20. History in a Document System (3) Design of history  GUEPs  Design guidelines  Cognitive dimensions

21. Next Time  Read Way and Barner. Automatic Visual to Tactile Translation, Part I: Human Factors, Access Methods and Image Manipulation. IEEE Transactions on Rehabilitation Engineering, March 1997, 81-94. PDF PDF  Submit Progress Report 2 by email  Guest lecturer and visitors: –Dr. Thomas Way –Casey Burkhardt –Richard Kheir  Topic: Assistive user interfaces

22. Article Presentations  Subject areas: –Intelligent user interfaces (IUI) –Computer supported collaborative work (CSCW) –Participatory design  Users involved at all stages of system development

23. Article Presentations (2)  Presenter’s responsibilities –13-16 minute summary of article (or some of its important points if the article is long) –Connect the article to previous articles, to models and frameworks, and to examples familiar to you. –Be prepared to answer questions and lead discussion (5-7) minutes –Time limits will be strictly enforced

24. Article Presentations (3)  Presentation style –Use PowerPoint slides as an outline, meaning do not read your slides to the audience. –Link to web resources if appropriate –Include diagrams, tables, or images if they will be helpful. E.g. a small concept map may be useful.

25. Article Presentations (4)  Class responsibilities (for those not presenting on the same evening) –Read introduction and conclusion of each article. –For two articles, read in depth and prepare two intelligent probing questions related to each article. –Send the questions by email to the instructor by 1:00 p.m. of class day.

26. Article Presentations (5)  Instructor will: –Use the submitted questions to encourage discussion. –Judge the submitted questions according to their intellectual content. For example, “What was the author’s first name?” has little intellectual content. –Judge the presentation for content summary and synthesis of ideas.

27. Research Team Meetings