Interaction Design

Dr. Jim RowanFoley Introduction

What’s in the Book that we’ll cover

From the Forward by Jim Foley

• You will find these things being discussed in just about any discussion of HCI– Know the user

• The user and the context of operation

– Consider the alternatives• Generate multiple possibilities to be tested• Test these alternatives

– Prototype early and often• Don’t spend a lot of time developing high fidelity prototypes

without testing your ideas against low fidelity prototypes

Four phases of a project

• Know the user and his task• Develop low fidelity prototypes of your best

initial ideas• Test the low fidelity prototypes and select one

for further development• Develop a higher fidelity prototype, then run

more detailed user studies

The Book Layout

• Chapter 2 Understanding the Design Space• Design Space?– Stanford University: given the the design parameters that

relate to a set of project objectives and goals, design space is the set of possible options that meet objectives and requirements of a specific project. Exploring a design space means evaluating the various design options possible with a given range of possible product, organization and process designs and optimizing with respect to project objectives and constraints such as required spaces and cost.

The Book Layout

• Chapter 1 Interaction Design Overview• The user• The context• The task at hand• Were do HCI and ID intersect?• What is the user experience?• Affective computing…

• How do you know if you hit the mark?

The Book Layout

• Chapter 3 • Understanding the User• Understanding human cognition

– (How we think about stuff)

• Mental models– Norman’s Gulfs among them

• Quan Tran’s Cook’s Collage (p109-110)– Wizard of Oz prototype

The Book Layout

• Chapter 4 Collaboration and Communication– (May skip this one… )– More on this later

• Supporting communication and collaboration(You can’t go wrong giving humans another way to

talk to one another!)

The Book Layout

• Chapter 5 Affective computing– (May skip this one too… )

• The effects of emotion on HCI design– “Warm and Squishy” HCI– Of Kismet, Paperclips and avatars

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• Chapter 6 Interface options• The front of the wave…• Mixing the Physical and the Electronic

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• Chapter 7 Data Gathering– Direct observation?– Take notes?– Take pictures?– Audio recording?– Video recording?– Questionnaire?

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• Chapter 8 Data Analysis– How do you analyze what we collected– We will pick and choose what to read here…

maybe skip entirely

The Book Layout

• Chapter 9 The ID process– We will look at this… right after we discuss

Chapter 1

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• Chapter 10 Needs and Requirements– How do you identify user needs?– How do you translate them into requirements?– How do you describe tasks to be performed?

The Book Layout

• Chapter 11 Prototyping– Low fidelity vs high fidelity– Paper prototypes– Wizard of Oz prototypes– You can tell the story to test the design within the

team… looking for inconsistencies• Scenarios as design descriptions• Storyboarding

The Book Layout

• Chapter 12 Evaluation• Four Case studies of evaluation

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• Chapter 13 Evaluation process– A practical approach to getting it done– Ethical issues– Institutional Review Board (IRB)• Approval is required for involving human subjects!

– Informed consent?– Ecological validity in research• Neats vs the Messies