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CSC 8570 -- USI Class Meeting 9 October 31, 2007
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Boo!
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Report from China Franny Brian
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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
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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
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Perfect Phone (2) Play prerecorded messages at various times Use templates for repeated tasks –Making a restaurant reservation
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Publish GPS Coordinates Task: Send coordinates –Solution –Issues Task: Display map –Get directions –Locate contact Task: Feature control
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Calls Trigger Emails Task: Missed call Task: Voice mail –Includes voice recognition translation of text Task: Controls Interface design Interface design Interface design
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Record Live Audio Task: Record to file Task: Save to server
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Play Prerecorded Messages Task: Record message Task: Set time or times to play –Recurring events Task: Message management Task: Time management Interface Interface
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Template for Restaurant Reservations Search parameters –Use GPS awareness Search results –Order in list Reservation Interface Interface
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Interface Evaluation Models and techniques GOMS analysis Keystroke Level Model Cognitive dimensions of notation Hierarchy of design principles Task analysis Layout appropriateness PIE model
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Interface Evaluation (2) Measurements Time Counts Geometry Satisfaction
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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
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Example -- AWSP Evaluates web sites Based on Jakob Neilsen’s design principles Rewritten by Lea Taylor Case Study Case Study Case Study
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Web Site Examples www.espn.com www.espn.com www.mckeesport.org www.mckeesport.org www.allentownpa.org www.allentownpa.org
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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?
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History in a Document System GOMS Fitt’s Law Cognitive dimensions GUEPs Task analysis
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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
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History in a Document System (3) Design of history GUEPs Design guidelines Cognitive dimensions
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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
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Article Presentations Subject areas: –Intelligent user interfaces (IUI) –Computer supported collaborative work (CSCW) –Participatory design Users involved at all stages of system development
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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
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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.
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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.
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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.
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Research Team Meetings
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