Synonyms: Sparkling, flashing, updates, flash
See also Time limits, carousel, Video, progress bar
Animations are:
- automatic visual changes or
- unexpected visual changes when using the application.
Examples of automatic visual changes:
- moving text,
- automatically started video,
- automatically scrolling content,
- sparkling or flashing content,
- content that is automatically updated after a certain time.
Examples of unexpected visual changes when using the application are:
- content is additionally animated when scrolling in the screen,
- content is scrolled through at different speeds when scrolling in the screen,
- manually started video contains flashing content,
- flashing error message which is shown after sending a form,
- when viewing content, the content is not displayed immediately, but shown in animated form (e.g. scaled, shifted, rotated or changed in terms of its transparency).
Presentation
Permalink "Presentation"| No. | Property | Description | Classification | Reference |
|---|---|---|---|---|
| 57 | Status | Content which flashes for more than 3 times per second and exceeds a certain flash threshold (siehe General flash and red flash thresholds - Web Content Accessibility Guidelines (WCAG) 2.1 (w3.org) (External Link)), must be avoided. | Must | EN 301 549: 9.2.3.1, 11.2.3.1 |
| 58 | Flashing | Content which flashes for more than 3 times per second should be avoided. | Should | WCAG 2.1.: 2.3.2 (AAA) |
| 59 | Animation | If the application contains content that automatically moves, scrolls or flashes, and if this animation lasts longer than 5 seconds and is displayed along with other content, it must be possible for the animation to be paused, stopped, or hidden. Note: Avoiding the use of automatically moving, scrolling or flashing content is recommended. | Must | EN 301 549: 9.2.2.2, 11.2.2.2 |
| 60 | Animation | If moving animations are displayed during the operation of the application, a mechanism should be available to disable them. Note: The mechanism for disabling moving animations can be implemented in the application. Alternatively, the user preference in the operating system should be taken into consideration (Control panel > Ease of Access Center > Make the computer easier to use > Turn off all unnecessary animations). | Must | EN 301 549: 9.2.2.2, 11.2.2.2 |
| 61 | Update | If the application contains content which is updated automatically and displayed along with other content, the update must be paused and/or stopped, or it must be possible to determine the frequency of the update and/or to hide the area with the automatically updated content. Note: Avoiding the use of automatically updating content is recommended. | Must | EN 301 549: 9.2.2.2, 11.2.2.2 |
Programming/interfaces
Permalink "Programming/interfaces"| No. | Property | Description | Classification | Reference |
|---|---|---|---|---|
| 62 | Alternative text | If information is communicated using the animation, this information must also be communicated in text form. Note: Additional requirements apply to videos. | Must | EN 301 549: 9.1.1.1, 11.1.1.1 |
| 63 | Reference to sensory properties | Information which serves the understanding or the operation of the application may not make exclusive reference to the animation of the described elements. | Must | EN 301 549: 9.1.1.3, 11.1.3.3 |
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