Accessibility

Common disabilities and barriers

Disability types
Disability type	Disability examples
Auditory	mild to moderate hearing impairments in one or both ears (i.e. hard of hearing) substantial and uncorrectable impairment of hearing in both ears (i.e. deafness)
Cognitive and neurological	disorders of any part of the nervous system, including the brain and the peripheral nervous system
Physical	weakness or limitations of muscular control (i.e. involuntary movements including tremors, lack of coordination or paralysis) limitations of sensation joint problems (i.e. arthritis) pain that impedes movement missing limbs
Speech	difficulty producing speech that is recognizable by others or by voice recognition software
Vision	mild to moderate vision impairments in one or both eyes (i.e. low vision, partial sight) substantial and uncorrectable loss of vision in both eyes (i.e. blindness) lack of sensitivity to certain colours (i.e. colour blindness) increased sensitivity towards excessive brightness in colours

Access barriers for people with disabilities
Barrier	Auditory disabilities	Cognitive/ Neurological disabilities	Physical disabilities	Speech disabilities	Vision disabilities
No captions or transcripts	Impacted				Impacted
Voice only web services	Impacted			Impacted
No supplemental sign language	Impacted
Inconsistent/overly complex navigation		Impacted
Difficult to understand sentences/words		Impacted
Long passages of text		Impacted
Moving, blinking or flickering content		Impacted
Lack of full keyboard support			Impacted
Missing visual cues			Impacted
Overly complex page functions			Impacted
Missing page structure			Impacted		Impacted
Insufficient contrast					Impacted
No equivalent text alternatives					Impacted