diff --git a/ARIA/apg/about/at-support-tables/at-support-tables.md b/ARIA/apg/about/at-support-tables/at-support-tables.md index f69687a0..7e4dd1c4 100644 --- a/ARIA/apg/about/at-support-tables/at-support-tables.md +++ b/ARIA/apg/about/at-support-tables/at-support-tables.md @@ -56,27 +56,57 @@ if (enableSidebar) document.body.classList.add('has-sidebar');
+ As reports on assistive technology interoperability are made available by the ARIA and Assistive Technologies + project, the APG Task Force adds a summary of assistive technology support to the relevant pages showing example + implementations of APG patterns. This page explains how to interpret and use the assistive technology support + summaries. +
+ +The purpose of the support tables is to provide APG readers with a legible and actionable summary of the + tests performed in the ARIA-AT project.
+Two scores are presented for each Assistive Technology and Browser combination for APG patterns that have + ARIA-AT data available: Must and Should. “Must” + failures block users. “Should” failures impede users. Learn more about ARIA-AT’s definitions of Must and Should on the + project wiki.
+Where possible, APG readers should avoid implementing patterns that have a score lower than 100% in the must + column. If, however, you find yourself implementing a pattern with less than 100% in the Must column, you should + take time to understand what is failing. You can learn more about the specific failures of a given pattern by + clicking through to the detailed report on the ARIA-AT website.
+ +- As reports on assistive technology interoperability are made available by the - ARIA and Assistive Technologies project, - the APG Task Force adds a summary of assistive technology support to the relevant pages showing example implementations of APG patterns. - This page explains how to interpret and use the assistive technology support summaries. + ARIA-AT is working with Assistive Technology vendors to get to 100% Must and Should passing rates. This means + that Assistive Technologies which use ARIA-AT will change over time. + When implementing a pattern that has less than 100% support for either MUST and SHOULD, be careful not to modify + your code to accommodate the Assistive Technology failure, especially if doing so would affect passing Assistive + Technologies.
+The original purpose of ARIA-AT data are to help Assistive Technology vendors coordinate the interoperable + rendering of ARIA. The ARIA-AT summary tables on APG should be used as an indicator for web developers about + what + areas to prioritize testing further, not as a final verdict on whether a feature in a web application will work. + You should always test your application’s rendering with multiple assistive technologies. +
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