DecideSmaller
ENRUDEFRTest a decision

Decide Smaller method

A reversible decision buys evidence before commitment.

Reversibility is not the same as low stakes. It describes how much of the cost, time, trust and optionality you can recover if the choice proves wrong.

Test this decision

No account. Your decision text stays in this browser tab.

Direct answer

What is a reversible decision?

A reversible decision is a choice you can undo or change at an acceptable cost, within a useful time, without creating disproportionate harm. Reversibility is a spectrum: a free trial is highly reversible; a permanent hire, house purchase or public commitment is much less so. The goal is to move uncertainty into the reversible part first.

Pause before the recommendation

Three answers could change this decision.

  1. 01

    What becomes harder to recover after this decision: money, time, trust, access or options?

  2. 02

    Which assumption is carrying the most weight but has the least evidence?

  3. 03

    What smaller action would expose that assumption without triggering the full commitment?

01

Smallest reversible test

Turn one assumption into an observable trial.

Write the decision, name the assumption that could reverse it, choose one observable measure, set a time limit and define the condition that stops the trial.

Measure
Evidence produced, cost of the test, time to learn and remaining uncertainty.
Success
The result distinguishes the options clearly enough to make the next commitment proportionate.
Stop
Stop if the trial cannot distinguish the options or quietly creates the same exposure as the full decision.

Worked example

What changes after the questions?

Before

A team debates buying an annual platform contract because migration may improve reporting.

What changed

The weakest assumption is not product quality but whether staff will use the new workflow consistently.

Next move

The team runs one workflow with five users for thirty days and measures adoption before signing the annual agreement.

Where this guide stops

A thinking tool is not an authority.

Some choices cannot be made safely through experimentation. Decisions involving urgent health, safety, legal duties or irreversible effects require appropriate professional authority and safeguards.

Sources and method notes

This page applies those ideas through the original Decide Smaller three-question and reversible-test workflow.

Continue with

Hire or outsource?Buy now or wait?Browse all decision guides

Ready to test the real decision?

Three questions before the expensive step.

Open this decision