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WEB ACCESSIBILITY
By Lyssa Verbessem - EMAKINA
Accessibility enhances
the usability for all user
10% to 15% of the total population
50 to 75 million people in EU27
There is a strong correlation between
disability and ageing
> numbers increase with demographic
change.
It’s also the right thing to do
Who are they?
Low Vision
Color blindness
Low Vision
Blindness
Molly Burke on Youtube
Name Kathy
Age 21
Disability Blind
Prevalence 30 million (blind and partially sighted) in Europe
Education Psychology [Bsc]
Profession Student
Hobby Shopping, walking, music, audio books
Computer
Need Education, groceries, work, social media, clothes
Location Everywhere
Equipment Siri, voice-over, JAWS, braille keyboard
Literacy Constantly through the day
Problems with resizing
No equivalent text alternative
No full keyboard support
No support for custom colors
Text, images, and page layouts that cannot be resized, or that lose information when resized
Images, controls, and other structural elements that do not have equivalent text alternatives
Websites, web browsers, and authoring tools that do not provide full keyboard support
Websites, web browsers, and authoring tools that do not support use of custom color
combinations
Insufficient contrast
Text and images with insufficient contrast between foreground and background color combinations
Complex navigation mechanism
Inconsistent, unpredictable, and overly complex navigation mechanisms and page functions
No video description
Video content that does not have text or audio alternatives, or an audio-description track
Missing cues
Missing visual and non-visual orientation cues, page structure, and other navigational aids
Physical
disability
Tremor and spasms
Amputation and deformity
Rheumatism
Reduced dexterity
Muscular dystrophy
Repetitive stress injury
Partial or total paralysis
Nick Vujicic on Youtube
Name Lena
Age 31
Disability Limb reduction defect
Prevalence ~6 per 10.000 births in Europe
Education Finance [Bsc]
Profession Accountant
Hobby Watching series, writing blogs
Computer
Need Education, groceries, work, social media, clothes
Location Home, work
Equipment Eye tracking, Siri, special keyboard
Literacy Daily use
Time limits
Insufficient time limits to respond or to complete tasks, such as to fill out online forms
Controls
Controls, including links with images of text, that do not have equivalent text alternatives
No full keyboard support
Websites, web browsers, and authoring tools that do not provide full keyboard support
Missing orientation cues
Insufficient time limits to respond or to complete tasks, such as to fill out online forms
Complex navigation
Inconsistent, unpredictable, and overly complex navigation mechanisms and page functions
Neurological
Disability
ADHD
Autism spectrum disorder
Multiple Sclerosis
Seizure disorders
Name Jenny Halle
Age 35
Disability Epilepsy
Prevalence 8 per 100 individuals in EU
Education Medicine
Profession Pharmacist
Hobby Hiking, marathon, jogging, camping
Computer
Need No real need, every day life
Location Work, personal use
Equipment -
Literacy Frequent
Jenny Labaw on Youtube
Photosensitive people
Please look away from the next slide
Flickering content
Unsuppressable animations
Unadaptable visual page design
Cognitive
Disability
Learning disabilities
Mental health disabilities
Memory impairment
Perceptual disabilities
Name Lena Richard
Age 33
Disability Dyslexia, Dysgraphia
Prevalence 8 per 100 individuals in EU
Education Medicine
Profession Pharmasist
Hobby Hiking, marathon, jogging, camping
Computer
Need No real need, every day life
Location Work, personal use
Equipment -
Literacy Frequent
Katherine Cahoon on Youtube
Complex navigations
Complex sentences
Long text without images
Unadaptable page design
Deaf &
mute
Difficulty hearing
Deafness
Deaf - blindness
Mild or moderate hearing impairments in one or both ears
Substantial, uncorrectable impairment of hearing in both ears
Substantial, uncorrectable hearing and visual impairments
Stuttering
Includes fluency in speech, repetition of individual sounds or entire words and phrases, and
misplacement or prolongation of pauses and sounds during speech
Apraxia of speech
Cluttering
Dysarthria
Includes inconsistent articulation and production of speech sounds, and errors producing sounds
in the correct order so that spoken words or phrases become difficult to understand
Includes increased speaking rate, incorrect rhythm, intonation, and co-articulation of sounds, and
other fluency in speech that is sometimes similar to stuttering
Involves weakness or complete paralysis of muscles that are necessary to produce speech,
including lips, lungs, throat, tongue, and others.
Speech sound disorder
Involves difficulty or inability to produce certain sounds or patterns of sound and sometimes results
in addition, distortion, omission, or substitution of such sounds with others.
Muteness
Involves inability to speak due to different reasons such as anxiety, brain injuries, or inability to
hear and learn speech
Rikki Poynter
Name Lindsey Clarke
Age 18
Disability Deaf (Accident, not mute)
Prevalence 55 million in EU
Education High school
Profession Student
Hobby Meeting friends, drawing, animating
Computer
Need Social media, homework, hobbies
Location Home, school, on the road
Equipment -
Literacy Daily use
No transcripts or captions
No volume control
No adjustable text size or colors
Audio content, such as videos with voices and sounds, without captions or
transcripts
Media players that do not display captions and that do not provide volume
controls
Media players that do not provide options to adjust the text size and colors for
captions
Voice only
No volume control
Web-based services, including web applications, that rely on interaction using
voice only
Websites offering phone numbers as the only way to communicate with the
organization
YOU
YOU
Quick tips
& examples
Typefaces adapted for the dyslexics
Do not use entire page’s length
Be careful of color contrasts
Font size
Do not rely on colors only
Use images between paragraphs
Make CTAs large enough
Be consistent
Simple information architecture
Limit choices
Simple and short sentences
Interactions consistent & predictable
European Commission
Wikipedia
BBC
A List apart
World Wide Web
Consortium
Google’s accessibilty
guidelines
Apple’s accessibilty
guidelines
By the way, Emakina is hiring!
pom@emakina.com

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Lyssa Verbessem at UX Antwerp Meetup - 30 January 2018

  • 1. WEB ACCESSIBILITY By Lyssa Verbessem - EMAKINA
  • 3. 10% to 15% of the total population 50 to 75 million people in EU27 There is a strong correlation between disability and ageing > numbers increase with demographic change.
  • 4. It’s also the right thing to do
  • 8. Molly Burke on Youtube Name Kathy Age 21 Disability Blind Prevalence 30 million (blind and partially sighted) in Europe Education Psychology [Bsc] Profession Student Hobby Shopping, walking, music, audio books Computer Need Education, groceries, work, social media, clothes Location Everywhere Equipment Siri, voice-over, JAWS, braille keyboard Literacy Constantly through the day
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14. Problems with resizing No equivalent text alternative No full keyboard support No support for custom colors Text, images, and page layouts that cannot be resized, or that lose information when resized Images, controls, and other structural elements that do not have equivalent text alternatives Websites, web browsers, and authoring tools that do not provide full keyboard support Websites, web browsers, and authoring tools that do not support use of custom color combinations
  • 15. Insufficient contrast Text and images with insufficient contrast between foreground and background color combinations Complex navigation mechanism Inconsistent, unpredictable, and overly complex navigation mechanisms and page functions No video description Video content that does not have text or audio alternatives, or an audio-description track Missing cues Missing visual and non-visual orientation cues, page structure, and other navigational aids
  • 17. Tremor and spasms Amputation and deformity Rheumatism Reduced dexterity Muscular dystrophy Repetitive stress injury Partial or total paralysis
  • 18. Nick Vujicic on Youtube Name Lena Age 31 Disability Limb reduction defect Prevalence ~6 per 10.000 births in Europe Education Finance [Bsc] Profession Accountant Hobby Watching series, writing blogs Computer Need Education, groceries, work, social media, clothes Location Home, work Equipment Eye tracking, Siri, special keyboard Literacy Daily use
  • 19.
  • 20. Time limits Insufficient time limits to respond or to complete tasks, such as to fill out online forms Controls Controls, including links with images of text, that do not have equivalent text alternatives No full keyboard support Websites, web browsers, and authoring tools that do not provide full keyboard support Missing orientation cues Insufficient time limits to respond or to complete tasks, such as to fill out online forms Complex navigation Inconsistent, unpredictable, and overly complex navigation mechanisms and page functions
  • 22. ADHD Autism spectrum disorder Multiple Sclerosis Seizure disorders
  • 23. Name Jenny Halle Age 35 Disability Epilepsy Prevalence 8 per 100 individuals in EU Education Medicine Profession Pharmacist Hobby Hiking, marathon, jogging, camping Computer Need No real need, every day life Location Work, personal use Equipment - Literacy Frequent Jenny Labaw on Youtube
  • 24. Photosensitive people Please look away from the next slide
  • 25.
  • 28. Learning disabilities Mental health disabilities Memory impairment Perceptual disabilities
  • 29. Name Lena Richard Age 33 Disability Dyslexia, Dysgraphia Prevalence 8 per 100 individuals in EU Education Medicine Profession Pharmasist Hobby Hiking, marathon, jogging, camping Computer Need No real need, every day life Location Work, personal use Equipment - Literacy Frequent Katherine Cahoon on Youtube
  • 30.
  • 31.
  • 32. Complex navigations Complex sentences Long text without images Unadaptable page design
  • 34. Difficulty hearing Deafness Deaf - blindness Mild or moderate hearing impairments in one or both ears Substantial, uncorrectable impairment of hearing in both ears Substantial, uncorrectable hearing and visual impairments
  • 35. Stuttering Includes fluency in speech, repetition of individual sounds or entire words and phrases, and misplacement or prolongation of pauses and sounds during speech Apraxia of speech Cluttering Dysarthria Includes inconsistent articulation and production of speech sounds, and errors producing sounds in the correct order so that spoken words or phrases become difficult to understand Includes increased speaking rate, incorrect rhythm, intonation, and co-articulation of sounds, and other fluency in speech that is sometimes similar to stuttering Involves weakness or complete paralysis of muscles that are necessary to produce speech, including lips, lungs, throat, tongue, and others. Speech sound disorder Involves difficulty or inability to produce certain sounds or patterns of sound and sometimes results in addition, distortion, omission, or substitution of such sounds with others. Muteness Involves inability to speak due to different reasons such as anxiety, brain injuries, or inability to hear and learn speech
  • 36. Rikki Poynter Name Lindsey Clarke Age 18 Disability Deaf (Accident, not mute) Prevalence 55 million in EU Education High school Profession Student Hobby Meeting friends, drawing, animating Computer Need Social media, homework, hobbies Location Home, school, on the road Equipment - Literacy Daily use
  • 37.
  • 38.
  • 39. No transcripts or captions No volume control No adjustable text size or colors Audio content, such as videos with voices and sounds, without captions or transcripts Media players that do not display captions and that do not provide volume controls Media players that do not provide options to adjust the text size and colors for captions
  • 40. Voice only No volume control Web-based services, including web applications, that rely on interaction using voice only Websites offering phone numbers as the only way to communicate with the organization
  • 41. YOU
  • 42.
  • 43.
  • 44. YOU
  • 46. Typefaces adapted for the dyslexics Do not use entire page’s length Be careful of color contrasts Font size
  • 47. Do not rely on colors only Use images between paragraphs Make CTAs large enough Be consistent
  • 48. Simple information architecture Limit choices Simple and short sentences Interactions consistent & predictable
  • 50. World Wide Web Consortium Google’s accessibilty guidelines Apple’s accessibilty guidelines
  • 51.
  • 52. By the way, Emakina is hiring! pom@emakina.com