AccessiWeb 2.2 - Rule 4.22.1


This test consists in checking whether each time-based media and each non time-based media defined with an object, an embed or an applet tag is supported by assistive technologies

Business description

Criterion : 4.22

Test : 4.22.1

Test description :

Does each time-based media and each non time-based media that is inserted via a Object, Applet or Embed tag pass one of the conditions below (except in special cases)?

  • The name, role, value, setting and status changes of the interface components are accessible to assistive technologies via an accessibility API
  • An alternative that is supported by an accessibility API allows to access to the same functionalities

Level : Bronze

Technical description

Scope : page

Decision level : semidecidable



Selection1 : All the embed, applet and object tags (embed, applet, object)


The selection handles the process.

For each occurence of the Selection1 raise a MessageA

MessageA : Check Manually the elements
  • code :ManualCheckOnElements
  • status: NMI
  • parameter : snippet
  • present in source : yes


Not Applicable

Selection is empty (The page has neither object, nor applet nor embed tag)


The selection is not empty


We detect the elements of the scope of the test to determine whether the test is applicable.

On latest webdev data set (2013-10-30, 78,000 pages), the test scope (embed, applet, object) has been found on 6795 pages, i.e on 8.7% of the pages