Don't Make Me Think
Trang 1Melinda Hileman
Owner of Hileman Holdings, LLC
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Hi, my name is Melinda Hileman, the owner of Hileman Holdings, the parent company of
Hileman Design and Grounding Stones Jewelry
Hileman Design provides graphic design, web design, desktop publishing and public relations services, and with Grounding Stones Jewelry, I make and sell wire-wrapped stone jewelry
Trang 2Steve is a usability consultant with more than 20 years of experience as a user advocate for companies like Apple, Netscape, AOL and others
He has become a highly sought-after speaker on usability design since the first version of
this book came out
Trang 3“What’s the most important thing I should do if I
want to make sure my Web site is easy to use?”
Nothing important should ever be more than
two clicks away?
Speak the user’s language?
Be consistent?
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Trang 4Krug’s First Law of Usability
DON’T MAKE ME THINK!
Self-evident, obvious and self-explanatory The user should be able to “get it”
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Krug’s First Law of Usability is Don’t Make Me Think If you only have room in your head for one usability rule, make it this one!
Your pages should be self-evident, obvious and self explanatory
The user should be able to “get it” - what your page is and how to use it - without expending any effort thinking about it
Trang 5In the first example, as the user visits the page, he has a lot of questions
But in the second example, there are no questions - the user is able to easily digest the page and find the content they’re looking for
So, when you’re creating a site, it’s your job to get rid of the question marks
Trang 6Things That Make Us Think
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A lot of things on a Web page can make users stop and think unnecessarily, like names of
things, and links and buttons that aren’t obviously clickable As a rule, people don’t like to
puzzle over how to do things The fact that the people who built the site didn’t care to make things obvious - and easy - can erode a user’s confidence in the site and its publishers
So you can see in this first example, simple wording can help users find what they are looking for quickly In the second example, making links obviously clickable is also important Ways
to do this would be to use conventions such as buttons or blue underlined text
Trang 7What shouldn’t visitors
have to think about?
Where am I?
Where should I begin?
Where did they put _?
What are the most important things on this page?
Why did they call it that?
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The last thing you need is another checklist to add to your stack of Web design checklists
The most important thing you can do is to just understand the basic principle of eliminating question marks
If you do, you’ll begin to notice all the things that make you think while you’re using the
Web, and eventually you’ll learn to recognize and avoid them in the pages you’re building
Trang 8How we really use the Web
Scanning, satisficing, and muddling through
We create sites as though people are going to pore over each page and weigh their options before deciding which link to click
What they actually do most of the time (if we’re
lucky) is glance at each new page, scan some of
the text and click on the first link that catches their interest or vaguely resembles the thing they’re looking for
As the children’s riddle goes; “Why are things always in the last place you look for them?
Because you stop looking when you find them.”
Trang 9Here’s a fact of life - users don’t read pages, they scan them Mostly because they’re in a
hurry, users know they don’t need to read everything, and frankly, they’re good at it
Trang 10The net effect is like this Far Side Cartoon with Ginger and her owner What users see when they look at a Web page depends on what they have in mind, but it’s usually just a fraction of what’s on the page
Like Ginger, they tend to focus on words and phrases that seem to match (a) the task at hand
or (b) their current or ongoing personal interests And of course, (c) the trigger words that are hardwired into our nervous systems, like our name, “Free,” “Sale,” and “Sex.” The net effect is like this Far Side Cartoon with Ginger and her owner What users see when they look at a Web page depends on what they have in mind, but it’s usually just a fraction of what’s on the
page
Like Ginger, they tend to focus on words and phrases that seem to match (a) the task at hand
or (b) their current or ongoing personal interests And of course, (c) the trigger words that are hardwired into our nervous systems, like our name, “Free,” “Sale,” and “Sex.”
Trang 11If life gives you lemons
You may be thinking, “Why don’t I just get a job
at the local 7-11? At least there my efforts might
be appreciated.”
If your audience is going to act like you’re
designing billboards, then design great
billboards.
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Trang 12Billboard Design 101
Design Pages for Scanning, Not Reading
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Faced with the fact that your users are whizzing by, there are five important things you can
do to make sure they see - and understand - as much of your site as possible The net effect
is like this Far Side Cartoon with Ginger and her owner What users see when they look at a Web page depends on what they have in mind, but it’s usually just a fraction of what’s on the page
Trang 13Create a clear visual hierarchy on each page Take advantage of conventions
Break pages up into clearly defined areas
“nested” visually to show what’s part of what
2: When reading a newspaper, we know that a phrase in very large type is usually a headline that summarizes a story underneath it, and that text underneath a picture is a caption that
tells me what it’s a picture of All conventions start as somebody’s bright idea For instance, enough people are now familiar with the convention of using a metaphorical shopping cart on e-commerce sites that it’s safe for designers to use a shopping cart icon without labeling it
Trang 14Make it obvious what’s clickable Minimize noise
Billboard Design 101
Design Pages for Scanning, Not Reading
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4 Since a large part of what people are doing on the Web is looking for the next thing to
click, it’s important to make it obvious what’s clickable and what’s not
5 There are two kinds of noise; busy-ness, where many things are clamoring for a user’s
attention and they have to figure out what to focus on; and background noise, where it’s like being at a social cocktail party; no one source of noise is loud enough to be distracting by
itself, but there are a lot of tiny bits of visual noise to wear us down Some people have no
problem with busy pages and background noise, but many do
Trang 15People won’t use your Web site if they can’t find their way around it!
Street Signs
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People won’t use your site if they can’t find their way around it Let’s say you’re headed to
the mall to buy a chainsaw As you walk into Sears, you think “Hmm Where do they keep
chainsaws?” As soon as you’re inside, you decide that you are going to look for it on your
own instead of asking someone where they are You start looking at the department names, high up on the walls Tools or Lawn and Garden?
Given that Sears is so heavily tool-oriented, you head in the direction of Tools When you
reach the Tools department, you start looking at the signs at the end of each aisle When you think you’ve got the right aisle, you start looking at the individual products
If it turns out you guessed wrong, you try another aisle, may back up and start over again in the Lawn and Garden department, or ask someone for help
Eventually, if you can’t find what you’re looking for, you’ll leave This is as true on a Web site
as it is at Sears You’ll leave when you’re convinced they haven’t got it, or when you’re just too frustrated to keep looking
Trang 16The overlooked purpose of navigation and breadcrumbs
Helps users find what they’re looking for Tell users where they are
Gives users something to hold on to Tells users what’s here
Tells users how to use the site Gives users confidence in the people who built it
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At Sears, I really only need to see the name on my way in; once I’m inside, I know I’m still in
Sears until I leave But on the Web - where my primary mode of travel is teleportation - I need
to see it on every page By this “it,” I mean obvious navigation and breadcrumbs
Trang 17I enter the site.
My goodwill is high because I saw a product
on TV, and I want to order it from this site.
I glance around the Home page.
There are a lot of links, pictures, and Flash videos I am feeling overwhelmed.
I look at the navigation.
I can’t find a link to order products, just a link that lists the products.
I go to the product list
page.
I see a button that tells
me to click it to order their products.
I click the button.
They don’t sell my item, even though the TV ad said they did I leave.
The Reservoir of Goodwill
Imagine that every time a user enters a Web site, they start out with a reservoir of goodwill Each problem they encounter on the site lowers the level of that reservoir.
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The reservoir is limited, and if you treat users badly enough and exhaust it there’s a good
chance that they’ll leave
But leaving isn’t the only possible negative outcome; they may just not be as eager to use
your site in the future, or worse, they may think less of your client’s organization
Trang 18I’m out
of here!
Sometimes a single mistake can empty it
You can refill it It’s situational
The Reservoir of Goodwill
It’s idiosyncratic
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1: Some people have a large reservoir, some small Some people are more suspicious by
nature; others are inherently more patient The point is, you can’t count on a very large
reserve
2: If a user is in a hurry or have just come from a bad experience on another site, their
expendable goodwill may already be low when they enter your site, even if they naturally
have a large reserve
3: Even if you’ve made mistakes that have diminished the user’s goodwill, you can replenish
it by doing things that make them feel like you’re looking out for their best interests
4: For instance, just opening up a registration form with tons of fields may be enough to
cause some people’s reserve to plunge instantly to zero
Trang 19The Reservoir of Goodwill
Things that diminish goodwill Things that replenish goodwill
Hiding information that users want Punishing users for not doing things your way
Asking users for information you don’t really need
Shucking and jiving them Putting sizzle in their way Your site looks amateurish
Know the main things that people want
to do on your site and make them obvious and easy
Tell users what they want to know Save them steps wherever you can Put effort into it
Know what questions users are likely to have, and answer them
Provide them with creature comforts like printer-friendly pages
Make it easy to recover from errors When in doubt, apologize
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There are a lot of things that can diminish, or replenish a reservoir of goodwill
Some things that diminish goodwill are hiding information that users want, asking users for information you don’t really need - which can scare users who are concerned with their
security, putting too much sizzle in their way, like multiple Flash videos, or making your site amateurish - remember the days when we all used animated gifs of a little guy waving or the
Trang 20“Building a good Web site is an enormous challenge, and anyone who gets it even half right has my admiration.”
“Please don’t take anything I’ve said as being against breaking ‘the rules’ - or at least bending them I know there are even sites where you want the interface to make people think, to puzzle or
challenge them Just be sure you know which
rules you’re bending, and that you at least think
you have a good reason for bending them.”
That’s all, folks
Closing comments by Steve Krug
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There is still a large part of the book that I didn’t cover, so be sure to pick up a copy He
wrote the book in a such a way that the reader could read it on an airplane
Trang 21Want to know more?
http://psychology.wichita.edu/surl
http://usability.gov/guidelines/index.html
http://www.sensible.com
http://www.usabilityviews.com http://www.useit.com
http://www.webword.com
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Trang 22Melinda Hileman
Owner of Hileman Holdings, LLC
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