Generated file currentAuthoring: Content completeWhat file status means
This status reports only whether the generated procedure matches the current controlled source hash. It is not independent content verification, regulatory approval, product evidence or a conformance decision.
Recorded standards review: No optional specialist review recorded. Next review: Not scheduled.
Checks animation triggered by interaction under the actual operating-system preference.
Available formats
Use this test in the format you need
The HTML procedure includes the working worksheet. JSON provides the structured source data. Editable Markdown files are delivered inside package downloads.
Checks animation triggered by interaction under the actual operating-system preference.
What this result means: This procedure records how Animation triggered by interaction behaves on reduced-motion-os-browser. It can expose evidence relevant to WCAG 2.3.1 for the tested task and environment. Use the linked conformance procedures for WCAG 2.3.1 to assess the complete requirements across the declared conformance scope.
Why it matters
Checks animation triggered by interaction under the actual operating-system preference. People most likely affected: people with vestibular disorders, motion sensitivity, attention-related disabilities or seizure disorders. Motion may cause symptoms, distract from the task or remove functionality when reduction is requested. In the recorded reduced-motion-os-browser environment, compare the default and reduced-motion experiences, including transitions, parallax and animated status changes; motion may remain harmful even when its duration is short.
When to use it
Apply Animation triggered by interaction when the frozen experience with the operating-system reduced-motion preference in the stated initial or runtime state. The selected focus is Animation triggered by interaction.
Confirm before starting
Does the frozen scope contain a target relevant to Animation triggered by interaction?
Are the required real environments, versions and settings identified separately from diagnostic simulations?
Which default, revealed, error, interruption, recovery and confirmation states can change the result?
Does a scope exclusion need to be reported separately from target applicability?
Mark it not applicable only when
The frozen scope contains no motion, animation or state relevant to Animation triggered by interaction.
Exceptions
This platform, journey, usability or quality procedure creates no additional normative exception. Apply exceptions only in the linked atomic or criterion-level conformance procedure and preserve that separate decision.
Reference
Supporting information
Standards and requirement mappings
W3C-WCAG22 · 2.3.1secondary · partial
This Motion-preference check observes Animation triggered by interaction in the recorded reduced-motion-os-browser environment. Use the linked WCAG 2.3.1 conformance procedure to evaluate all normative parts of WCAG 2.3.1 across the declared scope.
This source does not override WCAG or create an additional WCAG conformance requirement.
Supporting and advisory guidance
Supporting sources are identified in the mappings and source register. They do not add conformance requirements.
Evidence specification
Environment record
Operating system, browser, motion preference, application setting and whether the preference was active before load.
Reference or redact sensitive material. Do not store credentials, secrets, unnecessary personal data or unconsented participant data.
Motion comparison
Before/after recording or frame/timing evidence for the exact motion and task state.
Reference or redact sensitive material. Do not store credentials, secrets, unnecessary personal data or unconsented participant data.
Exception record
Essential-motion rationale, source and the smallest target to which it applies.
Reference or redact sensitive material. Do not store credentials, secrets, unnecessary personal data or unconsented participant data.
Worked example and outcome calibration
A11Y-MOTION-004-WORKED-001: representative worked example
Context: Representative synthetic example for Animation triggered by interaction on a fictional, version-frozen product target; no client or participant execution occurred.
Inspected: The tester follows S2 (Record OS, browser, OS motion preference and application state) using the target, required state, tool and repeat rule stated in this procedure.
Observed output: After the tester completes the Animation triggered by interaction scenario named Record OS, browser, OS motion preference and application state, the recorded observation for the target is inconsistent with the required result: The actual user preference and baseline are reproducible.
Evidence:
example-evidence-001: target and state record for Each selected animation, transition, movement and interaction relevant to Animation triggered by interaction.
example-evidence-002: contemporaneous observation from the named method — Before/after recording or frame/timing evidence for the exact motion and task state.
example-evidence-003: comparison note linking the actual observation to the expected result and claim boundary
Tester reasoning: The recorded observation does not demonstrate the expected result: The actual user preference and baseline are reproducible. The failed decision is limited to this synthetic target and state; unexecuted coverage is not inferred.
Decision: failed
Finding: A11Y-MOTION-004-example-finding-001 — Animation triggered by interaction: expected result is not demonstrated. The represented barrier may affect People with vestibular disorders, motion sensitivity, attention-related disabilities or seizure disorders.
Remediation: Change the represented target or process so it demonstrates this result: The actual user preference and baseline are reproducible. Then rerun the affected step and every dependent variation.
Reviewer feedback: The reviewer confirms applicability, environment, actual-versus-expected comparison, evidence references and bounded wording; unsupported product-wide or conformance language is removed.
Final client wording: Synthetic training finding: the sampled Animation triggered by interaction target does not meet the procedure expectation in the recorded state. User impact and broader scope require evidence from the buyer's real execution.
Retest: Synthetic retest example: after the represented change, repeat the failed step plus material error and recovery states. Close the finding only when new evidence demonstrates the expected result; otherwise retain the non-pass outcome.
Boundary: This is a representative, synthetic worked example for training and calibration. It is not evidence from a client product, participant or real assistive-technology execution.
Outcome calibration
Passed
In reduced-motion-os-browser, the selected Animation triggered by interaction target completes the recorded action and meets this expectation: Triggered animation avoids dangerous flashing and honors the reduced-motion preference without hiding state changes.
The example is a calibration scenario, not an execution or approval.
Failed
An applicable Animation triggered by interaction target produces a reproducible barrier during the named action, with the exact state and affected user task recorded.
A failed target remains failed even if another environment or target passes.
Not applicable
The frozen scope contains no motion, animation or state relevant to Animation triggered by interaction.
Inapplicable requires a completed inventory showing that no target matches applicability; a missing environment is not inapplicable.
Cannot tell
The Animation triggered by interaction target is applicable, but conflicting product/platform evidence or missing authoritative information prevents a defensible responsibility or expectation decision.
Record the conflict, comparisons attempted and person or evidence needed to resolve it.
Not tested
The Animation triggered by interaction target is applicable, but a required state, complete process or real environment was not executed.
Untested remains incomplete and cannot be converted to passed or inapplicable.
Sampling, complete processes and platform limitations
Test every in-scope instance when practical. For a large population, document a sample that includes each template, content or control type, meaningful state and high-risk task.
If this check is part of a user journey, test the selected journey from start to finish, including relevant errors and recovery. Record any path that was not tested.
A reduced-motion preference is a platform signal, not proof that every user needs the same presentation or that every motion requirement is satisfied.
Check relevant browser, tool or assistive-technology release notes before assigning unexpected behaviour to the product.
If responsibility is unclear, record the reproducible behaviour and use cannot tell until it is resolved.
Related procedures
A11Y-WCAG-026
ACT rules and WCAG technique traceability
This is a project-authored manual procedure, not a W3C Approved ACT Rule. An ACT result can support only the part of this procedure covered by that rule. It does not replace the remaining manual or assistive-technology checks.
No supporting W3C Approved ACT Rule is selected for this procedure.
Understanding SC 2.3.1. Techniques are examples, not extra requirements. Record any technique or common failure used, but decide the result against the success criterion.
Review history and source register
2026.08.27-rc.9 — Reworked for plain language, case-focused steps, scoped evidence and transparent draft review status.
2026.08.27-rc.9 — Migrated to professional catalogue schema v3 with separated outcomes, structured authority, applicability, evidence, decision and review records.
2026.08.27-rc.9 — Specialist procedure mapped to its task family and current first-party platform guidance and checked for internal consistency; competent review and real execution remain separate.
2026.08.27-rc.9 — Added explicit preparation and variation/recovery steps plus a bounded representative worked example for paid-template use.
2026.08.27-rc.9 — Procedure guidance and presentation simplified without changing draft governance status.
Review decision: pending. Open issues: Execute all required real environments and calibration cases.; Complete a distinct competent review and retain any unresolved material finding as blocked or cantTell.