Live. Learn. Access Designing for Accessibility
Núria Peña Interaction Designer at Holidu @nuriapenya
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IA IXD DESIGN
VISUAL DESIGN
WIREFRAMES
PROTOTYPING
USER RESEARCH
USABILITY TESTING ACCESSIBILITY ?
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Myth #1 “Accessibility is time-consuming and hard to implement”
= Usability for all
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Myth #2 “Accessible sites are ugly”
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Myth #3 “Accessibility is for edge cases”
1,000,000,000 +
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Accessibility is about designing for everybody, not the few. Anyone, Anywhere, Anytime.
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A11y Newbie
A11y Pro Developing Personas
Look around you
Test with people with impairments
Experiment yourself
Accessibility as part of the process
What can I do?
Empathy
Free online resources: Videos, tutorials, guides, testimonials…
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Empathy enables us to design more kindly
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Design Principles
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Text Clarity
DON’T
People with visual impairments, might find small fonts with low contrast very difficult to read and can create fatigue
DO
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Ensure big font
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Use colour and weight to create hierarchy instead of size
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Make sure contrast radio passes min. standards
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Colour Cues
DON’T
Not everyone perceives colours in the same way.
DO
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Never rely on colour only
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Support system feedback with icons or, preferable, text.
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Colour blindness is one of the most common vision deficiencies. It affects about 4.5% of the world’s entire population
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Images & Descriptions Screen reader users should have the same amount of information as someone viewing the image.
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Provide meaningful alternative text for images
<img src=“rain_cloudy.png” alt=“Scattered Showers” />
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Lack of Captions Non-existing captions can completely exclude users who are deaf or hard of hearing. But it affects many others as well.
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Cognitive impairments
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Someone who forgot the headphones
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Quiet place
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Motion & Animation Motion and animation can be annoying to anyone, but is extra frustrating for people with vestibular disorders:
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Heavy motion can cause dizziness, vertigo or nausea
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Carousels and ads might distract users from completing a task.
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Avoid videos or motion to start automatically
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Cognitive Overload Cluttered and distracting interfaces can derail users from accomplishing their tasks.
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Clear path to achieve a goal without obstacles
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Less options, faster decision-making
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Wall of text Large blocks of text with long sentences can cause pain and fatigue, especially for people with cognitive impairments. +
Break up big chunks of text into multiple paragraphs or bulleted lists
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Left-aligned text rather than centered or justified.
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Short paragraphs, adequate use of headings and subheadings, and ample empty space.
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It is estimated that between 5-10% of the population has dyslexia, but this number can also be as high as 17%.
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Keyboard-focused Some users navigate the internet using the keyboard rather than the mouse. +
All functions can be accessed with keyboard.
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Use a clear focus outline
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Place key information “above the fold”
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Give users enough time to perform their tasks
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Target points
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Target points For people with motor and dexterity impairments, some buttons and links are too small to touch. +
Add enough space between the different objects
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Simplify common interactions
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By applying those design principles we are not only improving the experience to people with impairments but to everyone.
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Final thoughts • Accessibility is just a better design for everyone. • Empathy will enable us to design more kindly. • Consider these design principles to improve accessibility in digital products.
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“
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“The power of the web is in its universality”
— Tim Berners-Lee Inventor of the World Wide Web.
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Live. Learn. Access Designing for Accessibility
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Questions?
Núria Peña Interaction Designer at Holidu @nuriapenya