Usability & Usability Testing
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Transcript of Usability & Usability Testing
Web Usability &
Usability TestingElaine Brennan
First law of web usability:
‘Don’t make me think!’Steve Krug
Consistent identity• logo or site ID• name• tagline
Types of pages• the homepage• pathway pages• information pages
The homepage• identify the site• set tone and personality• make clear what the site is about• help people start tasks immediately• direct them efficiently to what they want
Pathway pages• get people to what they’re looking for• like a table of contents• create a smooth path which doesn’t:
o make people thinko have to use the Back button
• most people choose the first plausible looking option: satisficing
Information pages• destination pages • where users scan and get their
Page layout• clear visual hierarchy• break pages into clearly defined areas• make it obvious what’s clickable• keep down the noise
Usability testing • Usability testing helps you find out how
well your website is working.
Doing a usability testYou carry out a usability test by:• watching and listening as one user at a time
o responds to your siteo tries to find specific informationo tries to accomplish specific tasks with the website
• recording the results• discussing results with your web team• making changes accordingly • testing again!
What Steve Krug knows:• If you want a great site, you’ve got to test.• Testing one user is 100 percent better than testing
none.• Testing one user early in the project is better than
testing 50 near the end.• The importance of recruiting representative users is
overrated.• The point of testing is not to prove or disprove
something. It’s to inform your judgement.• Testing is an iterative process.• Nothing beats a live audience reaction.
How many users to test?• Krug advises 3 or 4 will pick up nearly all
of the most significant problems
Who to recruit?• ‘it doesn’t much matter who you test’ as:
oWe’re all beginners under the skin.o It’s usually not a good idea to design a site
so that only our target audience can use it.o Experts are rarely insulted by something
that is clear enough for beginners.
Where and how to test?
Who, what, when?• Who should do the testing?• Who should observe?• What do you test, and when?
Types of live-site test• ‘Get it’ testing• Key task testing
Let’s usability test!• Let’s have a go at doing a quick set of
‘Get it’ tests