11.2.1.19: Three flashes or below threshold
Where ICT is non-web software that provides a user interface, it shall satisfy the success criterion in Table 11.19.
| Software does not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds. |
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NOTE 1: This success criteria is applicable to all content in the software (whether or not there is an alternate accessible mode of operation of the software) since any part of a software that does not meet this success criterion can interfere with a user's ability to use the whole software (including a user interface element that enables the user to activate the alternate accessible mode of operation). NOTE 2: This success criterion is identical to the WCAG 2.0 Success Criterion 2.3.1 Three Flashes or Below Threshold replacing "Web pages" with "software", "the whole page" with "the whole software", "the Web page" with "the software" and removing "See Conformance Requirement 5: Non-Interference" and with note 1 above re-drafted to avoid the use of the word "must". |
Testing methods
| Type of compliance | Inspection |
|---|---|
| Pre-conditions |
|
| Procedure |
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| Result | Pass: Check 1 is true Fail: Check 1 is false |
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