While usability testing is most efficiently done as part of the process
of creating a web site, it can be done at any time to improve your site's
effectiveness.
With all of the factors involved in designing and building a web site,
one of the most influential questions is often overlooked:
Is your site easy to use?
Usability isn't the same as design. Just because you've hired a talented
designer to craft your site and make it look great doesn't mean it's easy to
use. Looking good is a completely different matter from working well! After
all, plenty of beautiful sites have won design awards while losing customers
by the thousands.
How many times have you gotten lost on a good-looking site or abandoned a
purchase in frustration after you couldn't find the information you were
looking for? If you walk into a brick-and-mortar store and can't find your
favorite brand of gherkin pickles, you can simply ask an employee where they
are. But on the Web, it's much easier for a customer to go to a competitor's
site than to go through the trouble of sending an e-mail inquiry.
Whatever your business is about, your web site will have specific goals,
such as convincing people to...
1.Subscribe to your newsletter
2.Fill out a survey
3.Purchase your product
4.Inquire about a service you offer
Usability is simply a gauge of how easy it is for your visitors to do
these things.
For an e-commerce site, usability is especially crucial. If people can't
follow your navigation scheme, they won't be able to find your products. And
if they can't find them, how can they buy them?
Obviously, a key measure of the success of your site is its efficiency in
converting visitors to buyers. Yet did you know that, according to market
research from the Gartner Group - http://www.gartner.com/ , more than 50% of
Web sales are lost because visitors can't find the content they're looking
for? And another study by usability consultants Creative Good - http://www.creativegood.com/
estimated that improving the customer experience increases the number of
buyers by 40% and increases the overall order size by 10%!
With results like these, why doesn't everyone test their sites for
usability? Some people mistakenly assume that usability testing is too
expensive, too time-consuming, or too complicated to bother with, especially
for smaller companies.
Fortunately, usability doesn't need to be any of these things. While
there are high-priced consultants who can do it for you, a do-it-yourself
test can be very effective.
Setting Up a Basic Usability Test
While usability testing is most efficiently done as part of the process
of creating a web site, it can be done at any time to improve your site's
effectiveness. If you are planning a design update or adding new elements to
a site, it's crucial you begin the testing before you invest time and money
in making changes.
To do a basic usability test, you just need to find a "sample group" of
potential customers and ask them to perform simple tasks at your web site --
like purchasing a product, subscribing to a newsletter, or locating specific
information like your guarantee -- while you watch them.
1. When to test:
You can test usability any time. In fact, even if you don't have a site
yet, you can still test your initial design using rough sketches on paper
that show the layout of key information and navigation links. If you're
testing potential changes to an existing site, you can work from quick HTML
mock-ups, or use your designer's print-outs.
Obviously, the more detailed the testing prototype, the better the
results, but you'll be surprised by how much information you can gather with
even the roughest layouts.
If your site is up and running already, you can test your current design
to flag any potential problems and increase its efficiency. Usability
testing should be an ongoing process to fine-tune your site and make sure
you aren't losing customers -- and profits -- unnecessarily.
2. Set your goals:
Start by setting your testing priorities. Which of the actions your
visitors perform are most important to your business? Focus on a few key
things you want all visitors to be able to do, such as...
A. Subscribe to your newsletter
B. Become a member
C. Add a product to their shopping cart
D. Find answers to common questions
These basic tasks are the "script" for the test. The more complicated the
site, the more detailed the script. An e-commerce site selling plumbing
supplies might use a script that looks something like this:
1. Click the link for the page on which you think bathroom faucets are
located.
2. Find the American Standard "Ceratop" faucet.
3. Are there any less expensive faucets?
4. Add it to a list of items to buy.
5. How much will it cost to ship the faucet to where you live?
6. How long is the warranty?
7. Complete the purchase.
As your testers work through each task, you'll be able to see how they
use your site. Do they browse categories or look for a search function? Do
they encounter any difficulties along the way? This is an incredible
opportunity to get inside your customers' heads and watch what happens when
they use your site.
You can also analyze your site's metrics to see what's not working. If an
analysis of your web logs reveals that tons of people are exiting your site
from one or two particular pages, for instance, usability testing can be a
good way to find out what's behind the high exit rate. This is especially
crucial if these pages are part of your check-out process.
Note: If you can, get a test credit card number from your merchant
account or gateway provider so your testers can complete test purchases. If
this isn't possible, have the testers take the check-out process as far as
possible, and then ask them what they'd expect to happen next.
3. Choose the right people:
The people you choose for the test are important, as they should mimic
the range of users you have (or want to have) using your site. Sit down and
gather any customer demographic information you have to create a series of
user profiles.
What is their level of computer experience? How old are they? What
special knowledge do they have (if your site serves a specific demographic
or industry). A site targeting real estate professionals will have very
different user profiles than a site selling skateboard wheels, so make sure
your testers mirror your actual users.
Strive for a mix of computer experience that matches the mix you'd expect
of your audience. Are most of your customers already comfortable with
computers? Are there some newbies in the mix? You can recruit existing
customers if you're testing changes to the site, but for an existing site,
look for people who haven't used your site before.
Finally, don't worry about getting a large pool of testers: You only need
five or six people to identify 80% of the main problems that may be
affecting your sales.
Note: It's common practice to pay testers for their time and effort. And
while using Uncle Henry or Bob from accounting may save you $40, they're
likely to skew the results if they don't reflect your target audience and
are already familiar with your site.
4. What you'll need:
Set aside a clean, quiet place where there will be no distractions, and
provide a comfortable chair for the tester. Place a chair for yourself
slightly behind the tester so you can see where they're clicking as they
complete each task.
Have your tasks and questions -- your script -- written down, and be
ready to take notes. If you have a video camera, you can also tape the test
(with the camera looking over the tester's shoulder towards the screen).
Before you start the actual test, run through the script yourself to make
sure all the links are working, that the tasks make sense, and that the
video equipment captures the detail you'll need to see.
5. Running the test:
Before you start the test, explain to your testers that it's the site
you're testing, not them. Let them know that they can't do anything "wrong,"
and tell them to surf the same way they normally would. The more relaxed and
natural they are during the test, the better your results.
Then, ask them a few questions about their level of experience, how often
they use the Web, and what they know about your company and products, so you
can better understand their reactions.
Start at your homepage, and ask them what they think your site is about.
This can be a good way of judging how successfully you're welcoming new
visitors.
Throughout the test, encourage your testers to think aloud while they
work through the tasks you've set out for them, so you can get a sense of
their expectations.
Next, work through your prepared script. Ask the tester to attempt
various tasks and answer the questions you've prepared, while checking their
expectations with questions such as: "What do you think you'll be able to do
here?" and "Before you press that button, tell me what you expect to see
next." While you should take notes and follow the script, be flexible enough
that you can pursue any responses that may take you by surprise.
During the test, be sure not to guide the subject. Watch that you don't
provide any hints, suggestions, or even answers that will influence their
actions. If they can't complete a task, simply ask them what they expected
to have happen and how they'd fix the problem, then move on to the next
task.
If testers have a problem or become confused, don't assume you know why.
Ask what the problem is, and then paraphrase their answer back to them to
make sure you aren't bringing your own bias into the test.
Final Thoughts:
These days, there are certain expectations regarding how a web site
should look and how it should work. For instance, research shows that most
people expect to see a "home" link in the top left corner of a page, and
that they look for internal links down the left as well.
Now, you could argue that internal links look better or make more sense
along the right side, but in the end, usability isn't about what "makes
sense" or looks good to you, it's about what works for your average visitor.
And if 90% of your users expect to find your navigation along the left side
of the page, then the left side is what works!
Sometimes the simplest solution is the best. Links that look like buttons
get clicked on more often -- simply because they look like something that
can be clicked on. The first thing anyone who surfs the Web learns is that
blue, underlined text is a link. If you start making your links look
different for the sake of prettying up your site, you risk losing
functionality.
Finally, don't reinvent the wheel just for the sake of being trendy. Your
web site is a business tool first and foremost. Study sites that have a
similar function to yours and look for common approaches. Amazon.com, for
instance, has helped set standards and expectations for how an e-commerce
site should be organized.
While you don't want to simply copy successful sites, it makes sense to
adopt some of the same navigation techniques. After all, with millions and
millions of customers using a site like Amazon.com, chances are your
visitors will be familiar with their approach. Take advantage of this
familiarity and apply the usability strategies other successful sites have
found to be effective to your site -- then focus on testing to fine-tune the
way your own site works.
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ABOUT THE AUTHOR: Derek Gehl specializes in teaching real people how to
start profitable Internet businesses that make $100,000 to $2.5 Million
(or more) per year. To get instant access to all his most profitable
marketing campaigns, strategies, tools, and resources that he's used to
grow $25 into over $40 Million in online sales, visit:
http://www.marketingtips.com/tipsltr.html
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