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UX Atlas
Plate TOOL·011 · ToolGrid F3 · Rev. 2026-08-14

ProtoPie

High-fidelity prototyping with real conditional logic, variables and device sensors, without code.

ToolCraft conventionFoundational

Definition

A prototyping tool built around triggers, responses, variables and conditions. It handles interactions that link-based prototypes cannot: state, input, sensors and multi-device communication.

Craft convention. True because the industry converged on it. Breaking it costs familiarity, not correctness.

On this plate
  1. 1Definition
  2. 2Local chart
  3. 3Continue from here

Good for

  • Conditional and stateful prototypes
  • Sensor and hardware interactions
  • Testing real input handling

Watch out for

A separate tool from your design file, so keeping the two in sync is manual work.

Local chart

TOOL·011 · Region VII · Grid F3

This entry and the entries it is stated to connect with. Each line is labelled with what the connection means.

Usability TestingRES·001 · OFTEN USED WITHMotionFND·052 · OFTEN USED WITHPrototyping FidelityFLOW·005 · OFTEN USED WITH

Continue from here

Each link says what the connection is, so you can tell a principle from an alternative from a thing people mix this up with.

Often used with

These usually appear in the same screen or the same decision.

Nearby in the Atlas

Adjacent territory, found through shared tags rather than a stated link.

Axure RPCursorFigma