Transcript cs3724: Introduction to HCI Dr. Chris North GTA: Purvi Saraiya

cs3724: Introduction to HCI
Dr. Chris North
GTA: Purvi Saraiya
WELCOME
TO THE
NEXT LEVEL
Toto, I don’t think
we’re in 2604 anymore.
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Class discussion, participation
HWs/Projects: open-ended
Group project
Student presentations
Course Mechanics
• Prerequisite forms:
• 2604: CS >=C, ECE >=C-, else >F
• Texts:
• Shneiderman, Designing the User Interface
• Norman, The Design of Everyday Things
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http://courses.cs.vt.edu
Office hours: after class, 619 McB
GTA hours: MW 12-2, 133 McB
Grading: 45% Projects
5% Presentation
20% Homeworks
25% Exams
5% Class Participation
What is HCI?
What is HCI?
Human-Computer Interaction
What is HCI?
Human-Computer Interaction
• Design
• Development
• Evaluation
of user interfaces
for computer systems
Huh?
An example:
HomeFinder
Apartments.com
Hit
List
HomeFinder
The Goal
Usability
People are trying to accomplish their tasks.
UI should maximize their performance.
Who Cares?
• Everything is a User Interface
Doors
More Doors
Your interface to the world
• Output:
• 5 senses: vision, taste, touch, smell, hear
• Input:
• speech, writing, manual (hands, feet), gesture, …
Who Cares?
• Everything is a User Interface
• The User Interface is Everything
Florida Cares!
• Human error:
Who’s fault is it?
Why is it so hard?
Why is it so hard?
Programmers stink at UI design
Why is it so hard?
Programmers stink at UI design
• don’t think like normal people
• know the software internals
• arrogant (my software!)
Design is hard
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People are all different
People are unpredictable
Designer’s pride
New ways to think, break out of the box
How?
Design
Evaluate
Develop
Many iterations
What will I learn?
•Interaction Strategies
•Metrics, analysis
•Principles
•Guidelines
•Visualization
Design
new emphasis!
Evaluate
•Usability
•Heuristic
•Controlled experiments
•Surveys, data logs
Develop
•GUI programming
•Widgets, graphics, animation
•Visual Basic, ActiveX
•Java, Swing
•ASP
Grand Goals?
• Get angry!
• Break out of the box
Homework #0: UI Analysis
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See website
Pick a movie of your choice
Task: find a convenient playing time and location
Use 3 different systems:
• 1-800-555-TELL
• www.moviefone.com
• www.hollywood.com/showtimes/
• Write down the time it takes you for each
• Bring your times to class on Thursday