These are the first groups that came to mind. They may not all seem applicable all of the time but I would argue that making your site accessible to as many of these people as possible would improve the experience of all of your users.
- Partially sighted users that are not technically literate enough to use assistive technologies.
- People with physical impairments that affect their ability to use input devices and may also dictate the types of device they can use.
- People with low levels of technical literacy.
- People with poor literacy in the language of the site.
- People with dyslexia, not forgetting those with poor working memory or slow processing speed.
- People with dementia.
- People with a host of other mental and cognitive disorders.
- Partially sighted users that are not technically literate enough to use assistive technologies.
- People with physical impairments that affect their ability to use input devices and may also dictate the types of device they can use.
- People with low levels of technical literacy.
- People with poor literacy in the language of the site.
- People with dyslexia, not forgetting those with poor working memory or slow processing speed.
- People with dementia.
- People with a host of other mental and cognitive disorders.