what they don't teach you about usability testing (english version)
DESCRIPTION
This presentation is given in 2010 UiGathering Taiwan to share my pratical experience (or tips) on using usaiblity testing method to evaluate mobile devices.TRANSCRIPT
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What They Don’t Teach You About Usability Testing
Jen Wang
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Usable
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Usable
Useful
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Usable
Useful
Satisfied
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Expert
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User
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Usability Testing
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PlanningRecruiting
Testing
Analyzing
Reporting
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ideal vs. reality
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ideal vs. reality
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Test Settings
Data Log
Source of Users
Task Design
Thinking Aloud
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Test Settings
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Lab Boardroom
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Car Simulation
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Does real context impact the testing results?
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Kaikkonen,A., Kekäläinen,A., Cankar,M., Kallio,T., and Kankainen, A., Usability Testing of Mobile Applications: A Comparison between Laboratory and Field Testing, Journal of Usability Studies, Issue 1, Volume 1, November 2005, pp. 4-17
Lab Field
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Data Log
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Machine Memory
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When memory low, how to increase the ability taking
notes?
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Completion time
Task description
Quick Script
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Success criteriaSuccess/Failed
Failed reasons
Quick Script
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Path A for completing this task
Path B for completing this task
Quick Script
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Food for Increasing Brain Power!
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Source of Users
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From Agency Friends & Family
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10 x 5,000 = 50,000
Per usability testing, in-house recruiting saved NT$50000 than outsourcing at least.
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10 x 5,000 x 12 = 600,000
Recruiting users by snowballing is cheaper, but…
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In-house recruitment is quite time consuming…
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User Database
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Task Design
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New Feature
Voice Command
New + Main
Voice Command
Call HandlingRouting
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x 10 = 10 users
Except for new feature, main features are tested in each usability testing, so that plenty of user data can be collected through several testings.
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x 10 x 12 = 120 users
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How to determine the main functions for our products?
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Nothing changed.
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Become another product.
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Thinking Aloud
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Explanation Demonstration
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How to make Taiwan users comfortable with thinking
aloud?
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Easy-going Practice (math pratice)
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ideal vs. reality
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ideal vs. reality
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Thank You