Evaluation and Repair Tools Working Group - Publications

This document is an introductory guide to the Evaluation and Report Language (EARL) 1.0. EARL is a vocabulary, the terms of which are defined across a set of specifications and technical notes, that is used to describe test results. The primary motivation for developing this vocabulary is to facilitate the exchange of test results between Web accessibility evaluation tools in a vendor-neutral and platform-independent format.

This document describes features that web authoring and quality assurance tools can incorporate, so that they support the evaluation of accessibility requirements, such as those defined by the Web Content Accessibility Guidelines (WCAG) 2.0. The main purpose of this document is to promote awareness of such tool features and to provide introductory guidance for tool developers regarding what kind of features they could provide in future implementations of their tools.

This document describes the formal schema of the Evaluation and Report Language (EARL) 1.0. The Evaluation and Report Language is a standardized vocabulary to express test results. The primary motivation for developing this language is to facilitate the exchange of test results between Web accessibility evaluation tools in a vendor neutral and platform independent format. It also provides reusable vocabulary for generic quality assurance and validation purposes. While this document focuses on the technical details of the specification, a companion document [Guide] describes the motivations for EARL and provides a tutorial introduction to its use.

The identification of resources on the Web by URI alone may not be sufficient, as other factors such as HTTP content negotiation might come into play. This issue is particularly significant for quality assurance testing, conformance claims, and reporting languages like the W3C Evaluation And Report Language (EARL). This document provides a representation of the HTTP vocabulary in RDF, to allow quality assurance tools to record the HTTP headers that have been exchanged between a client and a server. The RDF terms defined by this document represent the core HTTP specification defined by RFC 2616, as well as additional HTTP headers registered by IANA. These terms can also be used to record HTTPS exchanges.

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This document is a specification for a vocabulary to represent Content in RDF. This vocabulary is intended to provide a flexible framework within different usage scenarios to semantically represent any type of content, be it on the Web or in local storage media. For example, it can be used by Web accessibility evaluation tools to record a representation of the assessed Web content in an Evaluation And Report Language (EARL) 1.0 Schema evaluation report. The document contains introductory information on its usage and some examples.

This document describes the requirements for the scope, design and features of the Evaluation and Report Language (EARL) 1.0. The Evaluation and Report Language is a standardized format to express test results. The primary motivation for developing this language is to facilitate the exchange of test results between Web accessibility evaluation tools in a vendor neutral and platform independent format. It will also provide reusable vocabulary for generic Web quality assurance and validation purposes.

WCAG-EM provides an approach for evaluating how websites - including web applications and websites for mobile devices - conform to WCAG 2.0. It covers different situations, including self-assessment and third-party evaluation.