-
Notifications
You must be signed in to change notification settings - Fork 0
Accessibility Report of thewebindex.org
Accesibility claims to make the web's information available to all users, including people with disabilities, such as blindness, visual impairment, color deficiency... Also, this information has to be accesible from all web browsers with a considerable usage rate, and from any device, like computers, mobile phones or tablets.
According to the W3C:
Web Content Accessibility Guidelines (WCAG) 2.0 covers a wide range of recommendations for making Web content more accessible. Following these guidelines will make content accessible to a wider range of people with disabilities, including blindness and low vision, deafness and hearing loss, learning disabilities, cognitive limitations, limited movement, speech disabilities, photosensitivity and combinations of these. Following these guidelines will also often make your Web content more usable to users in general.
Therefore, this guidelines shall be considered when designing a website.
WCAG defines three levels of conformance (from A to AAA). All websites must be accessible at level A (or A-accessible), should be AA-accessible and may be AAA-accessible. In practise, AAA level is hard to reach, so the usual goal for big websites such as the webindex is AA-accesibility.
The following report checks whether the web index visualizations website is AA-accessible or not. The organization of this report follows the structure provided by the WCAG principles:
- Perceivable - Information and user interface components must be presentable to users in ways they can perceive.
- Operable - User interface components and navigation must be operable.
- Understandable - Information and the operation of user interface must be understandable.
- Robust - Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
This guideline is not met by the webindex visualizations website because SVG elements have no text alternative.
This guideline does not apply to the webindex visualizations website since it deals with audio and video issues
Guideline 1.3: Adaptable - Create content that can be presented in different ways (for example simpler layout) without losing information or structure
This guideline is met by the webindex visualizations website.
Guideline 1.4: Distinguishable - Make it easier for users to see and hear content including separating foreground from background
This guideline is not met by the webindex visualizations website because colour is used solely to distinguish elements (i.e. bars in a graph, or countries in a map). Also colour contrast ratio is under the minimum, and absolute font sizes are used.
This guideline is not met by the webindex visualizations website since graph iteration is not possible using the keyboard. No alternative is provided.
This guideline is not applicable to the webindex visualizations website because there is no time limit in any interaction.
This guideline is met by the webindex visualizations website because there is flashing content.
Guideline 2.4: Navigable - Provide ways to help users navigate, find content, and determine where they are
This guideline is not met by the webindex visualizations website since there are links with no content and multiple choices to reach a document are not offered.
This guideline is met by the webindex visualizations website because text is readable and understandable.
This guideline is met by the webindex visualizations website because focus acts as expected.
This guideline is not met by the webindex visualizations website since enough information for graph interaction is not offered. For instance, when checking an indicator for a country, a graph bar with its global position is offered and some bars are coloured, but it is not possible to know what countries these bars refers to.
Guideline 4.1: Compatible - Maximize compatibility with current and future user agents, including assistive technologies
This guideline is not met by the webindex visualizations website because there are HTML and CSS validations errors. Therefore, markup is not used in a way that facilitates accessibility.
The webindex visualizations website is not accessible at an AA level of comformance according to the WCAG 2.0. The new visualizations website will try to meet all the WCA guidelines in order to make this information available for everybody.