accessibility basics
TRANSCRIPT
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Accessibility basics:A library for everyone
Whitney QuesenberyCenter for Civic Design@awebforeveryone | @whitneyq | @civicdesign
Designing for Digital 2017
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Hello!
MeCivic designUser research, accessibility, plain languageStorytellingFormer theatre designer
You?
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Make digital library services for everyoneStarting from principles• Accessible UX• People first
Building blocks of accessibility• Structure• Plain language• Tables and forms• Images and media
Laws and other regulations• ADA, Section 508, CVAA• UN Convention
Making it happen• Creating a process
Principles And a few definitions
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Which of these are for people with disabilities?
Disability
the outcome of the interaction between a person ... and the environment and attitudinal barriers they may face
International Classification of Functioning (ICF),World Health Organization
Usability
The effectiveness, efficiency and satisfaction with which a specified set of users can achieve a specified set of tasks in a particular environment.ISO 9241-11
Accessibility
The usability of a product, service, environment or facility by people with the widest range of capabilities.ISO 9241-20
Plain language means users can
find what they needunderstand what they finduse the information
to meet their goals
This definition was written by Ginny Redish and adopted by international plain language organizations
Many barriers to cognitive accessibility are the same as usability problems for general audience…but more severe.
- Clayton Lewis
The POUR Principles
Perceivable
Operable
Understandable
Robust
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What if we think about accessibility as user experience?
Not rules, but thoughtful design
Not disability, but experience
Not tech, but people
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Principles of Accessible UX1. People first: designing for differences
2. Clear purpose: well designed goals
3. Solid structure: built to standards
4. Easy interaction: everything works
5. Helpful wayfinding: guides users
6. Clean presentation: supports meaning
7. Plain language: creates conversation
8. Accessible media: supports all senses
9. Universal usability: creates delight
People FirstWe can’t design for people we don’t know
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People FirstDesigning for differencesPeople are the first consideration, and sites are designed with the needs of everyone in the audience in mind.
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Steven• Graduated from the Art
Institute• Graphic artist in a small
ad agency• iPad, iPhone, MacBook
Pro, super monitor
Jacob• College graduate,
legal training courses• Paralegal, writes case
summaries• Shares an apartment
with a friend• Laptop, iPhone
Emily• Graduated from high
school and working on a college degree
• Lives in a loft with a group of friends
• Works part-time at a local community center
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Accessible UX Personas
Meeting all kinds of peopleCarol
Jacob
Lea
Emily Steven
Maria
Trevor
Vishnu
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I like consistent, familiar places on the web
Ability: Autism Spectrum Disorder. Uses larger text and a program that hides everything but the text, so he doesn’t get distractedAptitude: Uses the computer well for games, but doesn’t learn new sites easilyAttitude: Prefers familiar sites in an established routineAssistive Technology: Text preference settings, power keyboard user.
Trevor
• 18 years old• Lives with family• Goes to secondary
school• Computers at school;
laptop at home; basic mobile phone with SMS
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Emily
I want to do everything for myselfAbility: Cerebral palsy. Difficult to use hands and has some difficulty speaking clearly; uses a motorized wheel chair Aptitude: Uses the computer well, with the right input device; good at finding efficient search termsAttitude: Wants to do everything for herself; can be impatient Assistive Technology: Communicator (AAC) with speech generator, iPad, power wheelchair
• 24 years old• Graduated from high
school and working on a college degree
• Lives in an independent living facility
• Works part-time at a local community center
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Jacob
The right technology lets me do anything.Ability: Blind since birth with some light perception Aptitude: Skilled technology userAttitude: Digital native, early adopter, persists until he gets itAssistive Technology: Screen reader, audio note-taker, Braille display
• 32 years old• College graduate, legal training
courses• Shares an apartment with a
friend• Paralegal, reviews cases and
writes case summaries• Laptop, braille display, iPhone
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Lea
No one gets that this really is a disability.
Ability: Fatigue from fibromyalgia, trackball, and special keyboardAptitude: Average userAttitude: Wishes people would understand how hard it can be for her to make it through the day Assistive Technology: Split keyboard, power keyboard user, Dragon Naturally Speaking
• 35 years old• Masters degree• Writes for a trade
publication; works from home
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Steven
My only disability is that everyone doesn't sign.Ability: Native language is ASL; can speak and read lips; uses SMS/IM, Skype, and video chatAptitude: Good with graphic tools, and prefers visuals to text; poor spelling makes searching more difficult Attitude: Can be annoyed about accessibility, like lack of captionsAssistive Technology: Sign language, CART, captions, video chat
• 38 years old• Art school• Graphic artist in a small
ad agency• iPad, iPhone, MacBook
Pro; good computer at work
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Vishnu
I want to be on the same level as everyone else.Ability: Speaks three languages: Gujarati, Hindi, English, and a little spoken Mandarin. Uses contrast adjustment to see the screen clearlyAptitude: Expert user of technical tools; frustrated searching across languages Attitude: Sees himself as a world citizen, and wants to be able to use any site Assistive Technology: Contrast adjustments, screen magnification, personalized stylesheets
• 48 years old• Engineering degree• Works for a medical software
company on int’l projects• Born in India, graduate school
in Malaysia, lives in Singapore• High tech all the way at work;
two mobile phones and a personal laptop
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Maria
I love this. It's all here...when I can find it.Ability: Prefers Spanish language sites, when she can find them; needs information and instructions written clearlyAptitude: Adventurous, but not very proficient; husband and daughter set up bookmarks for herAttitude: Thinks it’s wonderful to be able to have her favorite websites with her at all timesAssistive Technology: Skype, online translation sites
• 49 years old• Community college +
healthcare certificate• Married, grown children• Spanish – English bilingual• Community health worker• Smartphone from her phone
service, computer primarily her husband’s, for his work
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Carol
My grandkids are dragging me into the world of technology.
Ability: First signs of macular degeneration, mild arthritis; hearing aid; no special AT on computerAptitude: Used computers when she worked as a bookkeeper, but now her grandkids keep her old home computer updatedAttitude: Willing, but not adventurousAssistive Technology: Enlarges text, but makes few other adjustments
• 74 years old• Husband passed a year ago• Lives in an apartment near
one of her daughters, and her six grandkids (ages 6 to 16)
• Retired; worked 25 years as a bookkeeper
• Older computer at home; basic mobile phone
Get to know the personasIn groups of 4
Each choose a persona and introduce yourself:What are your top needs and goals?What barriers do you face?
Group input:What can you add to understanding the
personas?How can we design to help them succeed?
Building blocksStructure and semantic meaning
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Solid structure
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Solid structure starts with designDesign structure • Clear layout design that
supports users through the interaction or information
• Standards-based markup • Design for linearization and
responsiveness
Code structure• Standards-based markup• HTML5 layout elements• ARIA roles (used wisely)
You don’t have to know how to code, but you need to understand how a web page or app is structured to design it well
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Solid structure: Built to standardsWhich one is accessible?
A big hat tip to @AccessibleJoe and all the folks working on making WordPress more accessible, and to Sylvia Eggers, original author of the accessible child theme shown here.
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Unfriendly structure:Find the content!
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Unfriendly structure:Reading order
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Friendly structure: Good wayfinding cues
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Identify the areas of a page visually and in code
A clean presentation is easier to navigate – for everyone.
role = banner
role = main
role = contentinfo
role =complementary
role = form
role = navigation
role = navigation
role = search
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Design for responsive as a step to accessibility
How might you simplify this page?
Identify the content structures and what order they go in
MenusTextHeadingsContainersListsImagesFormsLinks
http://www.open.ac.uk/library/
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Use tables (only) for tabular dataDon’t use tables for layout
Use row and column headings (coded correctly)
Check that the table will be intelligible if linearized.
Do use “zebra stripes”
Two articles on zebra stripinghttp://alistapart.com/article/zebrastripingdoesithelphttp://alistapart.com/article/zebrastripingmoredataforthecase
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Use headings correctlyThe basicsOne <H1> per page
The controversies• Heading order• Empty headings• An <H1> in every <div>• Headings that should really be
a link or paragraph style
<H1>The visible title of the page</H1>
<H2>A major section of the page</H2>
<H3>A subheading</H3><H3>A subheading</H3><H3>A subheading</H3>
<H2>A major section of the page</H2>
<H3>A subheading</H3><H3>A subheading</H3>
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Support preferences for text sizeSupport text zoom with good wrapping. Don't let text be cut off.
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Easy interaction requires correct codeDesigning interaction• Start with a layout in a logical
order• Design the flow of on-page
interaction so they work for linear interaction
Coding interaction• Use semantic elements in
HTML correctly• Don’t rely on visual layout for
meaning• Change the appearance with
CSS
An easy quick check for interaction: can you navigate the entire page, app, or site only using a keyboard?
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Buttons and linksLinks are for navigation
To a new pageTo a new viewTo a different URLTo a place on a page
Buttons are for actionsSubmit form data to a
serverReset a formOpen a window Trigger a popup menuPlay media content
Both links and buttons can be styled with CSS, but for assistive technology to understand them, they must be coded correctly
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Elements of a formFieldLabelPromptValidationErrorsSubmit button
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Every form field needs a labelVisible labels on the screenLabels in code for screen readers
Date of birth
<form><label for="dob">Date of birth</label><input type="text" id="dob" />.....</form>
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Every field needs a label (not inside the field)
<form><label for="monthField">Month</label><input type="text" id="monthField" />
<label for="dayField">Day</label><input type="text" id="dayField" />
<label for="yearField">Year</label><input type="text" id="yearField" /></form>
Date of birth
Month Day Year
Date of birth
Month Day Year
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Put warnings and prompts in the right order
Before the action or field, not after it!
What is your date of birth?
Month Day Year
For example: 12 28 1970
What is your date of birth?
Month Day Year
For example: 12 28 1970
See Caroline Jarrett's articles on forms and her discussion of the placement of prompts at Forms That Work
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Put error messages where they can be foundIf the entry is checked as it is entered, the message can go after the field.
Otherwise, it should go before the field.
If the page refreshes, messages go at the top of the page.
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Form patternsUSDSstandards.usa.gov/components/form-controls/
Coopcoop-design-manual.herokuapp.com/styles/forms
GDSgovuk-elements.herokuapp.com/form-elements/
Break
ContentPlain language and alternatives for media
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WCAG 2.0 Guidelines for content accessibilityText contentLevel A and AA2.4.4 & 2.4.9 Link Purpose:2.4.6 & 2.4.10 Headings &Labels:
3.1.3 Unusual Words
ImagesLevel A1.1 Text Alternatives: 1.4.1 Use of Color1.3.3 Sensory Characteristics1.1.1 & 1.4.9 Non-text Content
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43% of adults in the US read at basic or below basic levels
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Use simple, everyday words
Description Of ServiceThe Site is an online community which enables photographers and graphic artists to post photographs and images, share comments, opinions and ideas, promote their work, participate in contests and promotions, and access and/or purchase services from time to time made available on the Site (“Services”). Services include, but are not limited to, any service and/or content 500px makes available to or performs for you, as well as the offering of any materials displayed, transmitted or performed on the Site or through the Services. Content (“Content”) includes, but is not limited to text, user comments, messages, information, data, graphics, news articles, photographs, images, illustrations, and software.
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Use summaries to communicate key points
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Help readers orient themselves (on the site, on the page, in the right order
1. Page title2. Shortest possible
answer3. Good headings4. Bullets for key points5. Good captions
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Put warnings and prompts in the right order
Requirements, prompts, warnings, notes and anything else that someone needs to complete an action correctly must come before the action, field or instruction, not after it!
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Use design to make information easy to scan
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Images and media: Appeal to all sensesPeople can understand and use information contained in media, such as images, audio, video, animation, and presentations. • Duplicating cues (color + shape)• Content replacement (audio + captions)
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ColorThe simplest rule:
Do not communicate meaning only with color.
Color, shape, text all work together to communicate meaning.
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Color
Make sure there is enough contrast between text (or icons) and the background.There are tools for that!• contrast-finder.tanagurconu.com• colorsafe.co/• webaim.org/resources/contrastchecker
lighthouse.org
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Animations and video
Transcripts for all audio
Synchronized captions for video
Audio (or visual) descriptions for action
And, make sure the media player is accessible
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ImagesThe most important question:
What does this image communicate?
4 Syllables - http://www.4syllables.com.au/2010/12/text-alternatives-decision-tree/
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ImagesWhat’s the right ALT text for this image?FoxRed foxA red fox, standing on a pile of rocks, looking back at the cameraRed fox at Sachuest Point National Wildlife Refuge
It depends on context!
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Get the basics right
Repeat the text in the image.Alt text: “Webcast. Applying 21st Century Toxicology to Green Chemical and Material Design. September 20-21, 2011”
Identify the link target Alt text: “UXPA group on Facebook”"@UXPA_Int on Twitter""UXPA's LinkedIN profile"
Don’t create noiseAlt text: “”
Include both image and text in one link
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Don't hide meaningful imagesIs a profile photo part of the content?
<img alt="Photo of Caroline">or<img alt="Caroline Jarrett">
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On the HTML5 standards horizon:<figure> and <figcaption>
Keeps the image, alt text, and caption together
<figure><img src="castle-painting.jpg" alt="The castle now has two towers and two walls."> <figcaption>Oil-based paint on canvas. Eloisa Faulkner, 1756.</figcaption></figure>
Example from: http://rawgit.com/w3c/alt-techniques/master/index.html#m6
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Make captions and alt text work togetherThe caption:“Figure 1: The ABC of research methods”
The alt text: “ABC diagram.”or "ABC diagram sketched on a chalkboard.”or“A diagram sketched on a chalkboard as a triangle. Top: Attitude. Right: Behavior. Left: Comprehension.
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Don't hide information in the alt text
Caption: Red fox, credit: John & Karen Hollingsworth
Alt text: Red Fox as Sachuest Point NWR. Credit J and K Hollingsworth
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When the information is in a chart...Add a data table
The alt text:"Bar chart of data in table below"
http://www.careerinfonet.org/finaidadvisor/earnings.aspx?nodeid=21
Laws
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Americans with Disabilities ActThe ADA is one of America's most comprehensive pieces of civil rights legislation that prohibits discrimination and guarantees that people with disabilities have the same opportunities as everyone else to participate in the mainstream of American life -- to enjoy employment opportunities, to purchase goods and services, and to participate in State and local government programs and services.
First passed in 1990https://www.ada.gov/ada_intro.htm
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UN Convention on the Rights of Persons with Disabilities
Adopted in 2006 https://www.un.org/development/desa/disabilities/convention-on-the-rights-of-persons-with-disabilities.html
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Section 508Section 508 covers all electronic and information technology used by the Federal government that agencies develop, procure, maintain, or use. Agencies must ensure that it is accessible to employees and public.
First passed in 2001Updated in 2017https://www.section508.gov/
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WAI Web Content Accessibility Guidelines 2.0The WCAG documents explain how to make web content more accessible to people with disabilities. Web "content" generally refers to the information in a web page or web application
1.0 published in 19992.0 published in 2008Work on 2.1 begun in 2017https://www.w3.org/WAI/intro/wcag
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Accessible UX WCAG 2.0On the A Web for Everyone book site, you can find resources including a list of the accessible UX principles and a table that cross-references the principles to guidelines and checkpoints in WCAG 2.0
http://rosenfeldmedia.com/books/a-web-for-everyone/#resources
Making it happenAccessibility is a process
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Work with clear purposePeople enjoy products that are designed for theaudience and guided by a defined purpose and goals.
• Design for clarity and simplicity.• Think “accessibility first.”• Choose an accessibility strategy.
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Start from a solid structurePeople feel confident using the design because it is stable, robust, and secure.
• Start from accessible templates• Code to standards.• Use standard web technologies
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Accessible frameworks
https://standards.usa.gov/18f https://www.gov.uk/service-manual/design/using-the-govuk-template-frontend-toolkit-and-elements
https://paypal.github.io/bootstrap-accessibility-plugin/
https://make.wordpress.org/accessibility/
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Accessibility testing in layersPrinciple Testing mode What it testsPerceivable Inspection Basic accessibility errors
Robust Code review Use of code standardsSemantic structure
Operable Check using ATExpert review
Interaction using keyboard, screen reader, other AT
Operable/Understandable
Usability testing Use by real people
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Accessibility is the work of everyoneTo make something as simple as a heading...• A UX researcher identifies user needs.• An information architect suggests keywords.• A content strategist plans the tone.• A content author writes the text.• A web producer tags it as a heading.• A visual designer decides on its appearance.• A web specialist creates the style.• And the tech team makes sure the servers are running.
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Be a leader Support an integrated practice:• Set policies and develop training.• Choose content and development tools that• support accessibility.• Create a style guide and media library.• Include people with disabilities.• Make accessibility part of site maintenance.
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Create an integrated practiceMake accessibility the way you do business.Assess what’s needed for an integrated practice:• Evaluate the current site.• Identify ways to allocate resources.• Identify opportunities to integrate accessibility into• current processes.• Assess current knowledge and readiness.
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It takes....
... engaging all types of expertise
Photos: ITIF AVTI/CATEA
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Be a ^ superheroCreate a new perspective
UX
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It takes….
…changing your habitsPhoto: mtstcil.org
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It takes….
…a new perspectiveAimee Mullins TED talk
Be a superhero for accessible UXMake change happen
Questions?
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Whitney Quesenbery [email protected] @whitneyq
A Web for Everyonerosenfeldmedia.com/books/a-web-for-everyone@awebforeveryone
Center for Civic Designcivicdesign.org@civicdesgin