Interaction design

Design and Experience

Interaction design

Interaction is where the interface responds: clicks, drags, keyboard, voice, and perceived latency. We design behaviors that reinforce mental models (what happened, what is missing, what is irreversible) without gratuitous motion that distracts or delays that feel like bugs.

Especially valuable in checkouts, editors, data tools, and sensitive confirmations. We specify durations, easing curves, keyboard focus, and fallbacks when the network fails—so engineering does not improvise frame by frame in production.

For strong brand products we align motion to brand guidelines; for utilitarian SaaS we prioritize clarity and performance (reduce repaint, respect prefers-reduced-motion).

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Deliverables

Interaction pattern catalog

Components with described behavior, not only pixels.

Micro-interaction storyboards

Frame sequence or key states for developers.

Motion guide

When to animate, when not to, and reduced-motion respect.

Context feedback matrix

Toast vs inline vs modal—selection criteria.

Keyboard and focus checklist

Tab order, shortcuts, and focus traps in overlays.

Lottie/CSS reference library (optional)

When the project needs reusable animated assets.

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Execution methodology

  1. Critical moment inventory

    Where users hesitate, undo, or make costly errors—prioritized by frequency and severity.

  2. Feedback principles

    Rules for loaders, skeletons, toasts, modals, and confirmations; interruption hierarchy.

  3. Micro-interaction specification

    Trigger, rules, feedback, and mode (e.g. hover vs touch); focus states and ARIA when applicable.

  4. Interaction prototype

    Figma with Smart Animate or reference video for complex motion.

  5. Handoff and motion tokens

    Named durations and curves for reuse; accessibility and performance notes.

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