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Re: accessibility and usability

"Roy Schestowitz" <newsgroups@schestowitz.com> wrote in message 
> Barbara de Zoete wrote:
>> [F'up set to ciwas-d]
>> I am getting more and more confused as to the meaning of the words
>> 'accessibility' and 'usability' *in the context of the world wide web*.
>> What do these two words mean? How do they differ from one another? Where
>> does the meaning overlap, if it does? Where do they perhaps conflict with
>> one another, if they do?
>> Can anyone please explain to someone who is not native speaking, nor
>> fluent in English?
> Accessibility is concerned with design that accommodates the need of
> disabled people (usually). For example, if you are near-sighted or blind
> (and hence _listen_ to Web pages), you want the page to have properties
> that make it friendly to you.
> Accessibility is a subset of usability, I suppose. It is one aspect that
> makes a page easier to _use_, by all audiences. This leads to the
> definition of 'usability'. Usability can be explained in terms of ease of
> navigation (How do I get to...), good context (where am I inside the Web
> site?), etc.

I would actually define usability closer to what you've described as 
accessibility.   Accessibility simply being whether or not you can actually 
access the website.

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