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The Emperor's New Web Site
By Eric M. Schaffer, Ph.D., C.P.E. and John Sorflaten, Ph.D.,
Human Factors International
Remember the story-book emperor who sought a new set of clothes and then bravely paraded the street with his noveau trousseau for all to view? Most of the citizens succumbed to the hype and told the emperor they viewed what he wanted them to see--the new clothes. However, to a few, the clothes were literally "unsightly" (to coin a phrase)--they saw nothing on the king but a grin.I'm pointing out that "viewability" on a Web site may not imply "usability." Real Websters know the difference. For example, a recent Web-mag cartoon shows a puzzled "visitor" in front of a store front. A sign says "Come on in." However, the visitor fails to see any door. It's obscured by the Las Vegas pizzazz and animatronic geegaws soliciting attention willy-nilly. Have you seen such Web sites?
This picture captures the dilemma facing all Web Marketers: visibility versus usability. Attention-getting design often detracts from easy access to the site content. Like the emperor's new clothes, what you see AIN'T what you want to get!
Check out the design your Web site contractor gives you. Here's a list of "four invisibles" to avoid.
- Avoid invisible text.
Well, web site drama demands a unique, one-of-a kind statement. Right? But why sacrifice readability? Keep your text visible…
- Create stand-out text. Avoid intricate background textures or pictures that obscure the text.
- Provide high contrast between text and background. Remember that what looks good on your designer's Macintosh screen may still appear "murky" on a PC monitor. They have different contrast ratios.
- Use a "flat" color scheme for text and background. Check out red text on blue background! Yuk! Red "floats" on saturated blue and is hard to read. We see it all the time. Avoid such eye-straining effects.
- Avoid invisible purpose.
Movement is great--in living organisms. We like to see that our kids are alive and kicking. But too much Active X, Future Splash, and Java mumbo can distract.Here's the REAL question: Does the animation fit your site's purpose, or obscure it? One example of useful animation is a site advertising a cellist's services. The site showed an animated cellist, with audio reinforcement. It works.
Animation triggers a reflex response from the eye. Readers are literally forced to look at it. Therefore, avoid gratuitous movement because it detracts from the other elements you want seen. Question that marquee and rotating button. Question authority!
- Avoid invisible buttons.
Button down the hatches. Button up your lips. Button your shirt or blouse. Wait--buttons let you LINK to another page, but can you tell? Is it a navigation button, or is it a just a picture (we call them "emblems")? Solution: don't let emblems and buttons look the same. Differentiate them clearly. Tip: use buttons with 3-D shadows to invite the user to click. And avoid emblems with 3-D shadows, too.
- Avoid invisible assumptions.
The BIGGEST challenge of all. Flush out invisible assumptions with usability testing. Try out your web design on people similar to those you hope will visit your site. Test it during the conceptual phase, before you make an emotional commitment to your HTML and graphics investment. Test it during the construction phase as well.
Tip: DON'T explain how the site works to your subjects. Give your subject a task (e.g., "Try to buy X from the site"). Invite them to "Please think out loud as you accomplish the task and tell me what you are thinking when you get stuck." Most important of all, indicate that they are not being tested themselves. Instead, they are helping you test your site! Be willing to wait and listen when they get stuck. Write down the problems. Then redesign. Do it again, with new subjects, until your site passes the test.
That's it for now. Notice that our ending parallels the moral of the emperor's new clothes story. Invite the truth. Don't pressure your friends, family, and employees to give you what they think you want to hear. Set up an honest test with the ground rules mentioned above. Consider paying your subjects an honest hour's wage to tell it like it is! You'll get your money's worth.
Human Factors International, Inc. P.O. Box 2020 Fairfield, IA 52556 Tel: (800) 242-4480 or (515) 472-4480 Fax: (515) 472-5412To learn more ...
Check out these sites for more tips on usability:
- Yale's Web Style Manual, with access to other design sites:
http://info.med.yale.edu/caim/StyleManual_Top.HTML- Sun's site design guide:
http://www.sun.com/980113/sunonnet- Jakob Neilson's Top 10 mistakes in Web design, plus access to other design sites:
http://www.useit.com/alertbox/9605.html- Sucky to Savvy: Do's and don'ts of Web site design:
http://www.glover.com/ss.html- Usability testing ideas:
http://stats.bls.gov/orersrch/st/st960150.htm
Search Bureau of Labor Statistics on "Usability Testing"- Official voice of the Human Computer Interaction Special Interest Group (SIGCHI):
http://www.acm.org/sigchi/webhci
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