CS 407 Human Computer Interface

1
CS 407 Human Computer Interface

• Class 19
• Friday, October 8, 1999

2
Thought for the Day

• Computers make very fast, very accurate
  mistakes.

3

The cartoon used in class came from Randy
Glassbergens site.
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Todays Topics

• Chapter 5
• Usability Engineering Exercise
• Any questions on Project?
• Project 1 Due Monday!

5
More HCI Websites

• ???
• Please let me know of other good sites!

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UE Exercise

• Attribute Guessability
• Measuring Concept Ease of first use of system
  without training.
• Measuring Method Time to create first entry in
  the dairy.
• Now level 30 seconds (paper-based system).
• Worst case 1 minute.
• Planned level 45 seconds.
• Best case 30 seconds (some as now)

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UE Exercise (2)

• Attribute Task migratability.
• Measuring Concept Scheduling a weekly meeting.
• Measuring Method Time to enter a weekly meeting
  appointment.
• Now level (Time for 1 appt) ( of
  weeks)
• Worst case Time to make 2 appointments.
• Planned level 1.5 (time for 1 appt)
• Best case Time for 1 appointment.

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UE Exercise Directions

• Split into groups (no more than 6 around a
  table).
• Review the worked exercise, page 203-205.
• Work out the same exercise for one trait each
  from Learnability, Flexibility Robustness for
  an email client (Outlook, Webmail or Pegasus).

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UE Exercise Outline

• Attribute
• Measuring Concept
• Measuring Method
• Now level
• Worst case
• Planned level
• Best case

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UE Exercise Conclusion

• Report your results to the class.
• Attribute
• Measuring Concept
• Measuring Method
• Now level
• Worst case
• Planned level
• Best case
• Turn in your result, with all names.