Answer in brief
Give every motion event a communication purpose, define timing, interruption and recovery, specify formats and performance, and preserve meaning when motion is reduced or disabled.
Verified facts
- Source review
- 7 September 2026
- Reader need
- motion design brief checklist
Motion design system — Name the audience and decision
Identify who encounters the motion, what information or orientation it must convey, and what that person should know or do afterwards. Distinguish functional transitions from decorative movement, then state where motion is required, optional or unnecessary. Put the reduced-motion equivalent beside the original purpose before visual treatment begins. The brief starts with the person affected, the state change and the meaning or control that movement must support.
Motion design system — Assemble controlled source material
The controlled source set should include approved copy, state diagrams, timing references, brand assets, platform constraints, output formats and performance limits. Give each item a version and owner. Keep the behavioural source separate from a rendered preview, because a polished export cannot explain interruption, restoration or responsive timing on its own. Controlled inputs include approved copy, state diagrams, timing references, assets, platform limits and performance conditions.
Motion design system — Connect claims to evidence
A claim that motion improves orientation, emphasis or feedback needs evidence from a representative task. Link each animated event to the source state change and the observable outcome it is meant to support. If the rationale rests only on taste, keep it as a hypothesis until a review shows that the movement preserves meaning and control. Each claim about orientation, emphasis or feedback connects to observable behaviour in a representative task.
Motion design system — Build the narrative sequence
Describe the sequence as cause and effect: trigger, anticipation, transition, result, interruption and recovery. Review that sequence with final-length copy, real loading behaviour and representative devices. Every movement should clarify a state change or preserve continuity; if removing it changes neither comprehension nor control, question whether it belongs in the brief. The sequence explains trigger, anticipation, transition, result, interruption and recovery without relying on presentation conventions.
Motion design system — Specify format and accessibility
Write every motion output as an implementable rule: source state, trigger, duration range, interruption behaviour, reduced-motion fallback, performance limit and export profile. Tie dimensions and codecs to the target platform rather than one abstract master. The specification should explain how meaning survives when an asset loads late, drops frames or cannot play. Format rules define timing ranges, outputs, fallbacks and how meaning survives reduced motion or failed playback.
Motion design system — Rehearse objections and exceptions
Rehearse the brief under reduced motion, no motion, low power, slow hardware, interrupted navigation and repeated exposure. Record which objection changes the timing, removes an effect or requires a fallback. An exception is resolved only when the alternative preserves the same information, user control and route to the next stable state. Objections test repetition, slow hardware, low power, interruption and absence of motion while preserving control.
Motion design system — Approve the working brief
Approve the brief when the audience decision, state model, timing, assets, platform outputs, fallback behaviour and responsible owners are traceable. A new reader should be able to reproduce the intended behaviour without oral explanation. Give every unresolved item a status and return condition rather than allowing it to disappear inside general approval. The signed record confirms the state model, evidence, accessibility alternative, production owner and unresolved exceptions in writing.
Practical checklist
- Give each motion event a communication or orientation job instead of adding movement as decoration.
- Define trigger, delay, duration, interruption, repeat, completion and state restoration for every interaction.
- List target platforms, aspect ratios, codecs, transparency, file limits and fallback behaviour before production.
- Provide reduced-motion and no-motion alternatives that preserve the same information and task outcome.
- Review timing with real copy, loading behaviour, user control and representative device performance.