En la actualidad está propuesta la Unified Web Evaluation Methodology 1.2 (septiembre 2007). Este documento se compone de dos partes: Core y Test. En la actualidad está adaptado a WCAG 1.0, pero ya está preparado un plan de migración a WCAG 1.0.
El método de evaluación propuesto produce un valor único al final, el UWEM web accessibility score (UWEM score), que puede ser empleado para comparar la accesibilidad de distintas versiones de un mismo sitio web o de distintos sitios web entre sí.
El documento Test define una serie de pruebas para comprobar los diferentes puntos de verificación de WCAG 1.0. Por ejemplo, para el punto de verificación 1.1 (Provide a text equivalent for every non-text element (e.g., via "alt", "longdesc", or in element content)) se definen las siguientes pruebas:
2.2.1.1.1 Test 1.1_HTML_01
This test is targeted to check that non-text content has a text equivalent.
•Applicability criteria: all non-text elements that support the alt attribute.
//img
//area
//input[@type='image']//applet
•Test procedure: Check that the element has an alt attribute.
•Expected results: PASS if true. FAIL if false.
•Fully automatable: yes.
2.2.1.1.2 Test 1.1_HTML_02
This test is targeted to analyse non-text elements with an empty text alternative.
•Applicability criteria: non-text elements with empty text alternative.
//img[@alt='']
//area[@alt='']
//input[@type='image'][@alt='']
//applet[@alt=''][count(local-name(*)!='param')=0]
//object[count(local-name(*)!='param')=0]
•Test procedure:
1. Check that the image/content is purely decorative.
2. If #1 is false, check that there is a text alternative adjacent to the non-text content.
•Expected results: PASS if #1 or #2 is true. FAIL if #1 and #2 are false
•Fully automatable: no.
2.2.1.1.3 Test 1.1_HTML_03
This test is targeted to analyse non-text elements with non-empty text alternative.
•Applicability criteria: all non-text elements with non-empty text alternative.
//img[@alt][@alt!='']
//area[@alt][@alt!='']
//input[@type='image'][@alt][@alt!='']
//applet[@alt][@alt!='']
//object[count(local-name(*)!='param')>0]
•Test procedure: Check that the text alternative represents the function of the non-text-element within the context. If there is text content adjacent to the non-text element, the text alternative can consist of this text content combined with the non-text element alt attribute value.
•Expected results: PASS if true. FAIL if false.
•Fully automatable: no.
