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Archive for the 'General' Category

Validating an entire site

Periodically you may want to make sure your entire website validates. This can be a hassle if your site is big. In this article we introduce a few python scripts which will help us do mass validation from a list of links. We will also modify the W3C validator to work the way we want.

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Creating accessible bar charts

Web site bar charts often consist of a fancy image exported from Microsoft Excel. If you are lucky someone wrote an alt-text explaining what the chart is about. It is time to stop doing that. In this article I show you how you can make an accessible bar chart without sacrificing visual pizzazz.

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Browsing habits of screen reader users

A while ago I read the article “Observing Users Who Listen to Web Sites“. In that article the authors report that visually impaired users scan web pages with their ears instead of reading them top to bottom. This may not come as a surprise to you if you read Jakob Nielsen’s “How Users Read on the Web” back in 1997. Recently I have had the opportunity to study a number of screen reader users and my observations are similar.

This article is also available in Polish.

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Proposal for an Accessible Captcha

You have probably been subjected to a captcha last time you registered for a free e-mail account somewhere. Most likely you were presented with a funny looking image in which you were supposed to find a squence of numbers or letters which you had to copy to a textfield to prove that you are a human and not a machine.

Imagine if you could not see the image. What would you write in the text field? The phrase “you inaccessible idiots” spring to mind…

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Standards-wielding maniacs

The advent of web standards has created a new breed of self-proclaimed experts. Wielding the W3C online validator tool they attack webmasters, site owners and and anyone without the Xhtml logo in the page footer. However, changing your website to make it pass thorugh the W3C validator does not guarantee accessibility.

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Peter Krantz, peter.krantz@giraffe.gmail.com (remove giraffe).