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www.luxoft.com
What prototypes are used for?
Know more about a product
Get feedback
Get information about possible problems during production
Get an ability to change something before production
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Prototype as documentation
Far more compact than text
Does not take much time to
understand
Simplifies development
Reduces development time
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Why people use products?
Users have goals
To achieve goals users
perform tasks
Tools are used to
accomplish tasks
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Fast & cheap
Right fidelity
No software/hardware
limitations
Power of paper prototyping
Collaborative
Can be done with clients
No special skills needed
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Basic tools
Paper
Pencils, pens, markers,
sharpies
Stickers of different sizes
Scissors
Scotch tape
Transparent paper
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Extra tools
Special sets for different
interfaces (desktop, web,
mobile)
Rulers with interface
elements
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DIY tools
Printed and cutout interface
elements on magnet paper
Interface elements printed
on stickers
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Testing a prototype
How to prepare for testing
Decide what exactly you
want to test
Prepare scenarios
Think about interactions
Keep in mind
Wrong people lead to wrong
results
Moderation should be
moderate
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Running a test
People needed
User
Moderator
Watcher
Test phases
Set the stage
Test prototype
Get feedback
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Analyzing test results
Task completion frequency
Task completion time
Errors and missteps
User comments
Watcher notes
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Refining your prototype
Prototyping is an iterative
process
Build a prototype, test it on
users, refine prototype with
new knowledge
2-3 iterations are usually
enough
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Further reading
• Prototyping by Todd Zaki Warfel
• Paper Prototyping: The Fast and Easy Way to Design
and Refine User Interfaces by Carolyn Snyder
• Sketching User Experiences: Getting the Design Right
and the Right Design by Bill Buxton
• The Elements of User Experience: User-Centered
Design for the Web and Beyond by Jesse James Garrett