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From: Sumit Patel
Date: Aug 12, 2025 6:17AM
Subject: Queries on Consistent identification and On input
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Hi all,
I have a couple of doubts related to accessibility compliance, and I would
appreciate your inputs:
1. **Consistent Identification (WCAG 3.2.4)**
On Page A, there is a table where one of the columns includes an error
icon button. Clicking this icon downloads error logs to the system.
On Page B, a similar table has the same error icon button, but here,
clicking it opens a dialog instead.
Although the icon and context appear similar, the resulting actions
differ.
**Could this be considered a failure of WCAG 3.2.4 – Consistent
Identification**, since users might expect the same functionality from
identical-looking components?
2. **On Input (WCAG 3.2.2)**
On another page, there's a dropdown located at the start of the main
region. A default value is already selected. When a user changes the
selection, the entire main content (except for the dropdown) updates
dynamically. However, the keyboard focus remains on the dropdown.
**Does this behavior violate WCAG 3.2.2 – On Input**, given that a
significant context change occurs without user confirmation or adequate
notification?
Looking forward to your thoughts.
Regards,
Sumit.
From: Mark Magennis
Date: Aug 13, 2025 4:05AM
Subject: Re: Queries on Consistent identification and On input
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Regarding WCAG 2.4.3 Consistent Identification, your scenario seems to be the opposite of what is covered by that SC. The SC is about components with the same functionality. Your scenario is where components have different functionality. Possibly, the SC should have covered both scenarios, but it doesn't. It also doesn't cover components on the same page, as explained in the Understanding doc, so it's quite limited.
WCAG 3.2.2 I find a little more difficult. Assuming you're sure that the change to the page content meets the definition of a "change of context" (https://www.w3.org/WAI/WCAG22/Understanding/on-input.html#dfn-changes-of-context) then I would have thought that an appropriate label for the control would be enough to adequately advise the user of the behavior before using the component. To use a crude example, a label of "Replace page content with:" would seem to be a pretty adequate notification. Without such a label or other instructions then I guess it would fail.
Mark
From: WebAIM-Forum < = EMAIL ADDRESS REMOVED = > on behalf of Sumit Patel via WebAIM-Forum < = EMAIL ADDRESS REMOVED = >
Sent: Tuesday, August 12, 2025 13:17
To: WebAIM Discussion List < = EMAIL ADDRESS REMOVED = >
Cc: Sumit Patel < = EMAIL ADDRESS REMOVED = >
Subject: [EXTERNAL] [WebAIM] Queries on Consistent identification and On input
Hi all,
I have a couple of doubts related to accessibility compliance, and I would
appreciate your inputs:
1. **Consistent Identification (WCAG 3.2.4)**
On Page A, there is a table where one of the columns includes an error
icon button. Clicking this icon downloads error logs to the system.
On Page B, a similar table has the same error icon button, but here,
clicking it opens a dialog instead.
Although the icon and context appear similar, the resulting actions
differ.
**Could this be considered a failure of WCAG 3.2.4 – Consistent
Identification**, since users might expect the same functionality from
identical-looking components?
2. **On Input (WCAG 3.2.2)**
On another page, there's a dropdown located at the start of the main
region. A default value is already selected. When a user changes the
selection, the entire main content (except for the dropdown) updates
dynamically. However, the keyboard focus remains on the dropdown.
**Does this behavior violate WCAG 3.2.2 – On Input**, given that a
significant context change occurs without user confirmation or adequate
notification?
Looking forward to your thoughts.
Regards,
Sumit.