cmput 301: lecture 01 introduction lecturer: martin jagersand department of computing science...
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CMPUT 301: Lecture 01Introduction
Lecturer: Martin JagersandDepartment of Computing Science
University of Alberta
Notes based on previous courses byKen Wong, Eleni Stroulia
Zach Dodds, Martin Jagersand
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HCI and program design
• Why worry about the user?1. People “more expensive” than machines
2. Errors may be unacceptable
3. Can’t sell unattractive and hard to learn SW
• Design1. For the user: Useful, correct, complete,
efficient
2. For the programmer: Portable, changeable, extensible, reusable
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Course content:How to do User Interfaces
• Object Oriented SW eng:– Learn the programming skills
• The human: – What perceptual skills support what
interaction?
• Design and evaluation:– Task analysis, usability, evaluation
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Example:Interaction and interfaces:
• The past?– Text based interaction:
If A then
end
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The present: Direct manipulation:
• xfig drawing program Icons afford use
• Results visible• Direct spatial action-
result mapping
line([10, 20],[30, 85]);patch([35, 22],[15, 35], C);
% C complex structuretext(70,30,'Kalle'); % Potentially add font, size, etc
matlab drawing:matlab drawing:
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The future?Vision and Touch UI
• Observe and Interpret Physical Interactions
• Make Machines work with Humans
• Soon most appliances will have embedded computers
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Motivation
• Clint Eastwood classification:– the good– the bad– the ugly
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Motivation
• The good:
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Motivation
• The bad:
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Motivation
• The ugly:
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Question
• What are some other examples?
• In the real world?
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Why Design?
• “Despite the enormous outward success of personal computers, the daily experience of using computers far too often is still fraught with difficulty, pain, and barriers for most people.”
• …
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Why Design?
• “The lack of usability of software and the poor design of programs are the secret shame of the industry.”— Mitch Kapor
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Why Design?
• There’s more to developing software than just making it work correctly.
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Why Design?
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Software Design
• User perspective:– meets needs– increase user satisfaction– reduce frustration– increase productivity– reduce errors– easy to learn– easy to use
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Software Design
• Developer perspective:– manage complexity– reduce maintenance and support costs– increase quality– reduce defects– increase reuse– reduce time-to-market
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Software Design
• Selected goals:– bridging users and technology effectively– marry art and science– evolutionary development
(design, implement, evaluate)– integrate expertise across disciplines
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Multiple Disciplines
• industrial design• graphic design• architecture• ergonomics• cognitive psychology• sociology• anthropology• ethics
• software engineering• computer science• visualization• experimentation• intellectual property• arts• business …
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Software Design
• Think about the user.
• Focus on goals and tasks.
• Try it out on the users.
• Involve the users.
• Iterate.
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Book:
“Human-Computer Interaction”
by Alan Dix, Janet Finlay, Gregory Abowd, and Russell Beale,
Prentice-Hall, 1998
http://www.hcibook.com/hcibook/
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Instructor: Martin Jagersand
• Office:
Athabasca Hall 401
• Office Hours:
By appointment
• E-mail:
• Phone:
780 492 5496
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Staying in Touch
• WWW page:
http://ugweb.cs.ualberta.ca/~c301/
• Newsgroup:
ualberta.courses.cmput.301
• Emails:1. Your section TA, e.g. ayman, trysi etc…
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Project
• Complex– Components
– Integration (early!)
• Vague– Talk to users
– Evolution
• Team effort– Hold regular meetings
– Assign tasks
– Peer reviews
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Grading
• Assignments: 15%
• Midterm Exam: 15%
• Project Parts: 40%
• Final Exam: 30%
Note: All assignments and project parts are due on a Monday at 12 noon. The TAs will explain the submission process in the labs. Late submissions will not be accepted.
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End
• What did I learn today?
• What questions do I still have?