# Prototype learning brief

## Purpose
- Decision this prototype will inform:
- Assumption to investigate:
- Evidence we already have:

## Task and scope
- Person and situation:
- Task to try:
- Start and end of the flow:
- States needed to answer the question:
- Content and fictional data needed:
- Format and fidelity, with reasons:
- What is deliberately outside this prototype:

## Try it
- Relevant participants and access needs:
- Consent and session plan:
- What we will observe:
- Evidence that would challenge our assumption:

## Decide
- What happened:
- Change, investigate further or proceed:
- Why, and what remains uncertain:
- Implementation and accessibility follow-up:
- Owner and next review:

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Cumulative · Prototype the uncertainty that matters
Guide: https://cumulative.com.au/resources/prototype-plan

A prototype can help answer a design question. It does not prove production reliability, security or accessibility, and participant feedback is not a guarantee of adoption.