viernes, 28 de agosto de 2020

Herramienta para evaluar la accesibilidad de las herramientas de autor

El W3C ha creado ATAG Report Took, que guía al usuario en la evaluación de la accesibilidad de las herramientas de autor.

lunes, 24 de agosto de 2020

Consejos para mejorar la accesibilidad para las personas con discapacidad cognitiva

En Designing for cognitive accessibility: Where to begin se ofrecen interesantes consejos para mejorar la accesibilidad para las personas con discapacidad cognitiva:

There are many techniques that can be used to enhance attention, including:

  • Pausable website carousels – these are multiple pieces of content which rotate across a single coveted space on a webpage. Carousels that are automatically moving content need the ability to be stopped once a particular image captures a visitor’s attention.
  • Restart capabilities – they allow users to save their data and their place in forms and multi-step transactions, like ecommerce. This makes it easier for sites to regain customers’ attention in the event of a distraction.
  • Retracing capabilities – this is a “go back” option which enables site visitors to easily return to recognizable points in their transaction or journey, so they can seamlessly pick up where they left off before becoming distracted. For example, a student in an online learning module needs to be able to go back and rewatch, reread, and rethink about a lesson as many times as necessary.
  • Filtering – the ability to hide non-related content and later unhide it. For example, in an online learning platform, students should have the ability to turn off the chat feature while they are focused on a learning module (and then turn the chat back on when they are finished).
Y también:

  • User authentication – offer at least one alternative method that does not rely on a user to memorize character strings. These include options such as biometric methods (ex. fingertip sensor). In addition, don’t block copy/paste functionality from password manager software.
  • Don’t hide important/frequent controls; also, show both the text and icon labels for controls making it easier for users to remember their purpose.
  • Grouping content – In ecommerce, group similar items semantically and visually with a suggested maximum group size of five. This reduces reliance on memory when evaluating and making choices between similar items.
  • Path markers – to remind site visitors where they are in a process.

miércoles, 19 de agosto de 2020

Aprender los atajos de teclado de los lectores de pantalla

En Learning common keyboard shortcuts for screen readers se explican algunas técnicas para aprender los atajos de teclado de los lectores de pantalla más populares.

lunes, 17 de agosto de 2020

Las cinco reglas de ARIA

En Using ARIA:

  1. First Rule of ARIA: If you can use a native HTML element or attribute with the semantics and behavior you require already built in, instead of re-purposing an element and adding an ARIA role, state or property to make it accessible, then do so.
  2. Second Rule of ARIA Use: Do not change native semantics, unless you really have to.
  3. Third Rule of ARIA Use: All interactive ARIA controls must be usable with the keyboard.
  4. Fourth Rule of ARIA Use: Do not use role="presentation" or aria-hidden="true" on a focusable element.
  5. Fifth Rule of ARIA Use: All interactive elements must have an accessible name.

Y en español:

  1. Primera regla de ARIA: si puede usar un elemento o atributo HTML nativo con la semántica y el comportamiento que ya necesita, en lugar de reutilizar un elemento y agregar un rol, estado o propiedad de ARIA para hacerlo accesible, entonces hágalo.
  2. Segunda regla de ARIA: no cambie la semántica nativa, a menos que realmente tenga que hacerlo.
  3. Tercera regla de ARIA: todos los controles interactivos de ARIA deben poder utilizarse con el teclado.
  4. Cuarta regla de ARIA: no use role="presentation" o aria-hidden="true" en un elemento enfocable.
  5. Quinta regla de ARIA: todos los elementos interactivos deben tener un nombre accesible.

viernes, 14 de agosto de 2020

Una excelente crítica de las capas de accesibilidad (accessibility overlay)

Karl Groves, un experto internacional en accesibilidad web, ha escrito What would an ethical overlay look like?:

Accessibility overlays have existed on the market since at least around 2004. Companies such as Readspeaker offered products that displayed a widget on customers’ websites that were best described as “add-on assistive technologies”. The primary feature offered by such products was the ability to read the page content aloud to a website’s users.
The benefit to such a feature would seem obvious to the layperson: If you have problems seeing the page or have problems reading, then a feature that reads the content for you would certainly be a significant improvement.  To people with deep knowledge of the Web and accessibility, the shortcomings of a per-site read-aloud widget are glaring. After all: if a user needs to have the content read-aloud to them on one site, they’ll need it on all websites and all applications they use.  In other words, such software is best deployed on the user’s computer, not on individual websites.

It is simply impossible to examine the claims made by overlay vendors against what their products actually do and come up with a conclusion that differs from the following: 
Overlay vendors overstate their products’ capabilities. They deceive their customers and, as a result, are actively harming the field of accessibility and doing a severe disservice to end users with disabilities. This, in turn, is a waste of money and delays active improvement to a website. These products will not make your site compliant with the ADA, Section 508, EN 301 549, or any other regulation based on WCAG.

lunes, 10 de agosto de 2020

La importancia de la revisión manual de la accesibilidad web

En The Importance Of Manual Accessibility Testing se analiza la importancia de realizar revisiones manuales de la accesibilidad web y no confiar ciegamente en las herramientas automáticas:
Automation really shines here. It can repeatedly and tirelessly pour over these details with perfect memory, at a rate far faster than any human is capable of.
Automated accessibility tests aren’t a turnkey solution, nor are they a silver bullet. There are some limitations to keep in mind when using them.

viernes, 7 de agosto de 2020

Accesibilidad de los programas de videoconferencia

En Which Video Conferencing Tools Are Most Accessible? han analizado la accesibilidad de los programas de videoconferencia, parece que el mejor es Zoom.

miércoles, 5 de agosto de 2020

accessiBe, la herramienta mágica

accessiBe es una herramienta mágica por todo lo que promete:
accessiBe is transforming web accessibility by replacing a costly, manual process with automated, state-of-the-art AI technology.
Using the contextual understanding and image recognition, acessiBe’s AI scans and analyzes websites to learn what elements and functionality they include, and adjusts them to blind users’ screen-readers.
¿Será verdad?

lunes, 3 de agosto de 2020


Dyslexic.com es un sitio web dedicado a la venta de productos de apoyo para las personas con dislexia.

Tiene una página dedica a los tipos de letra para las personas con dislexia.