cs3724: Introduction to HCIDr. Chris North

GTA: Beth Yost

WELCOME TO THE NEXT LEVEL

Toto, I dont think were in 2604 anymore.Class discussion, participationHWs/Projects: open-endedGroup projectStudent presentations

Course MechanicsPrerequisite forms:2604: CS >=C, ECE >=C-, else >FTexts:Usability Engineering, by Rosson & CarrollTeach yourself Java2 in 21 days, SAMS (optional)http://courses.cs.vt.edu Office hours: after class, 619 McBGTA hours: T Th 10-noon, 133 McB ?

Grading25% Homeworks (4)5% Class presentation40% Project30% Exams (midterm, final)

Project: java, groups of 2 studentsProject milestones:DesignInitial implementationUsability evaluationFinal implementation

???What is it?Who cares?Why is it hard?How does it work?What will I learn?

What is HCI?

What is HCI?Human-Computer Interaction

What is HCI?Human-Computer Interaction

DesignDevelopmentEvaluation of user interfaces for computer systems

Huh?

An example:

HomeFinder

Apartments.com

HitList

HomeFinder

The GoalUsabilityPeople are trying to accomplish their tasks in life. (system independent)

Introduce a system, User Interface should maximize their ability.tasksystemperson

Who Cares?

Everything is a User Interface

Doors

More Doors

Communication ChannelsSystem to human:

Human to system: system,world

Who Cares?

Everything is a User Interface

The User Interface is Everything

Florida Cares!Human error: Whos fault is it?

Why is it so hard?

Why is it so hard?Programmers stink at Usability

Why is it so hard?Programmers stink at Usability

dont think like normal peopleknow the software internals, technology firstenjoy systems more than peoplearrogant (my software!)

Usability is hardPeople (users) are all differentPeople are unpredictableDesign skill isnt enoughEvaluation with users is requiredDesigners prideNew ways to think, break out of the box

How does it work?DesignEvaluateDevelopmany iterationsUsability Engineering

What will I learn?DesignEvaluateDevelopPrinciplesRequirementsActivity designInformation designInteraction designGUI programmingWidgets, graphics, animationJava, SwingData-driven applicationsUsability evaluationControlled experiments

Grander Goals?Get angry!

Mental shift:From system-centered design to user-centered design

Break out of the box

Homework #0: UI MeasurementRead UE ch 1See websitePick a movie of your choiceTask: find a convenient playing time and locationUse 3 different systems:1-800-555-TELLwww.moviefone.comwww.hollywood.com/showtimes/ Write down the time it takes you for eachBring your times to class on Wed