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Accessibility is a problematic treated and widely hailed in both national and international. This is why they have created a series of resources that allow you to specify the characteristics that must meet the content available through Web technologies, Intranets and other computer networks, so that they can be used by most of the people, including people with disabilities and elderly, autonomously or through technical aids pertinentes.Entre these resources are:

Standard In 301 549:2018, version 2.1.2, "accessibility requirements for products and services TIC"

The standard AT 301 version 2.1.2 549:2018 (Opens in new window) especifica los requisitos funcionales de accesibilidad aplicables a los productos y servicios que incluyan TIC (sitios web, software, apps nativas, documentos, hardware, etc). Además de describir los procedimientos de prueba y la metodología de evaluación a seguir para cada requisito de accesibilidad.

Moreover, this new version of the IN 301-549 has been declared by the European commission as harmonised standard for the implementation of the Web Accessibility directive in Implementation decision (HAT) 2018/2048 of the committee, 20 December 2018 . Therefore, from 21 December 2018, is the standard that applies in the Spanish public administrations.

Currently, this new version is available on the web of ETSI (Opens in new window) . However, this version includes Spanish rule UNE-EN 301549:2019 , que en virtud del acuerdo suscrito por la Secretaría de Estado de Función Pública y AENOR (Opens in new window) can be accessed through the PAe.

Accessibility guidelines for Web content (WCAG) 2.1

The Web Content Accessibility Guidelines (WCAG) 2.1 are the latest version of the web content accessibility guidelines on the Web of the W3C (World Wide Web Consortium).

The new the version 2.1.2 IN 301-549:2018 (Opens in new window) is aligned with the WCAG 2.1 and therefore introduces all changes incorporated into this last: new criteria of conformity, new pattern "2.5 Modes of entry", etc.

It is also worth mentioning that in this new version have not been changed the criteria according to the WCAG 2.0, even his numbering.

UNE 139803:2012 norm. Accessibility requirements for web content.

Is a Spanish rule which provides accessibility requirements for the web content. In terms of its requirements reference completely to the accessibility guidelines for web content WCAG2.0 (Opens in new window) the Initiative for Web accessibility (Opens in new window) (WAI) of Web consortium (Opens in new window) (W3C) por lo tanto hay una equivalencia directa entre ellas. Esta norma actualiza la UNE 139803:2004.

The Secretariat of state of Public Administrations has signed an agreement with AENOR (Opens in new window) for the free distribution of this rule a través del Portal de Administración Electrónica. Está prohibida la distribución de este documento por otros medios que no sean los autorizados por AENOR.

Web Content Accessibility Guidelines WCAG 2.0

The WCAG 2.0 (Opens in new window)  son una evolución de las WCAG 1.0. Se trata de una recomendación internacional sobre cómo hacer accesibles los contenidos de la Web a las personas con discapacidad y fueron aprobadas en diciembre de 2008. Tienen en cuenta los nuevos factores tecnológicos y la experiencia derivada del uso de las WCAG 1.0.

Standard ISO/IEC 40500:2012

The standard ISO/IEC 40500:2012 (Opens in new window) , aprobado en octubre de 2012, es el estándar internacional que recoge las pautas de accesibilidad web WCAG 2.0. De este modo, las diferentes legislaciones nacionales pueden recoger referencias a este estándar favoreciendo la armonización internacional.

UNE-EN 301 549, “Requisitos de accesibilidad de productos y servicios TIC aplicables a la contratación pública en Europa” – “Accessibility requirements suitable for public procurement of ICT products and services in Europe”

This rule, the AT 301 549 (Opens in new window) sets the functional requirements that will guarantee that products and services TIC accessible to all people; for example, from a mobile phone, until computers via web pages; thus, the requirements for the web are based on the guidelines of web content accessibility WCAG 2.0, developed by W3C, still in line with those in the Spanish rule UNE 139803, ‘ accessibility requirements for contents in the Web ’. Furthermore, the European standard, published in ETSI (Opens in new window) , describe los procedimientos de ensayo y la metodología de evaluación de cada uno de ellos. La norma ha sido adoptada al catálogo español como UNE-EN 301 549 por parte de AENOR, la entidad legalmente responsable del desarrollo de las normas técnicas en España.

The Secretariat of state of Public Administrations has signed an agreement with AENOR (Opens in new window) for the dissemination of this rule through the Portal of E-government. Is prohibited the distribution of this document by other means other than authorized by AENOR.

WAI-ARIA Accessible Rich Internet Applications

WAI-ARIA (Opens in new window) , adopted in March 2014, is an international recommendation which defines how do the content and applications sites more accessible to people with disabilities. It is especially helpful for dynamic content generation and for advanced user interfaces developed with AJAX, HTML and Javascript. It encompasses in the Initiative for Web accessibility (WAI) (Opens in new window) from Consortium of the Web (W3C) (Opens in new window) .

Norma UNE 139803:2004. Requisitos de Accesibilidad para contenidos en la web.

La norma UNE 139803:2004 es una norma española, que ha tomado como punto de partida para su realización las Directrices para la Accesibilidad de los contenidos en la Web 1.0 (WCAG 1.0) de la Iniciativa para la Accesibilidad Web (WAI) del Consorcio de la Web (W3C). En la mayoría de los requisitos de accesibilidad ambas normas son equivalentes pero la norma UNE es ligeramente más exigente y ha incrementado la prioridad de alguno de estos requisitos. Por lo tanto, un portal que cumpla la norma UNE será también conforme a las WCAG 1.0. Sin embargo, un portal conforme a las WCAG 1.0 es posible que tenga que realizar alguna modificación para alcanzar un determinado nivel de accesibilidad según la norma UNE.

Spanish legislation, by ROYAL DECREE 1494/2007, dated 12 November, which approves the Regulation on the basic conditions for the access of persons with disabilities to the information society obliga a las webs de las Administraciones Públicas a cumplir los requisitos de prioridad 1 y 2 especificados en la norma UNE.

Unified Methodology of Evaluation UWEM 1.0 Web

The UWEM 1.0 (Opens in new window) describes a methodology for the assessment of the implementation of the recommendation WCAG 1.0. The purpose of this methodology is to ensure that the tools and techniques developed evaluation for large-scale monitoring or for evaluation in local, compatible and coherent among themselves and with the initiative WAI.