Product Discovery Canvas

Test Card

Condenses one critical assumption into a testable plan with a clear metric and a success threshold set in advance.

The Test Card is a compact planning artefact for one test. It connects hypothesis, test, metric, and success threshold before execution. This lets the team later determine whether the evidence sufficiently supports the assumption or calls for another learning step.

Core question

How will we test this critical assumption with a clear test, a suitable metric, and a success threshold set in advance?

Plan Test Card Method guide

Start comparison

Give feedbackIs this method useful to you?

Participants: 1-5
Time: 20-35 min

Complete and freeze the four fields before execution. Record observations and conclusions in the Learning Card.

Paper illustration of a Test Card with four fields for hypothesis, test, metric, and success threshold.

Hypothesis
State the critical assumption
Define one specific, falsifiable claim that matters to the next decision.
Test
Choose the smallest meaningful test
Design a responsible procedure that produces evidence specifically for the hypothesis.
Metric
Define the observable signal
Specify which observation or calculation counts as evidence and how it will be captured.
Success threshold
Set the threshold in advance
Define a quantitative or clearly observable boundary at which the result is considered sufficient.

Create a new version for each new hypothesis or materially changed test setup. Evaluate results in a Learning Card after execution.

A good fit when

Useful when a prioritized assumption should be checked with a contained test. Use an Experiment Canvas for broader planning with guardrails, data basis, and decision logic.

Ideal for

Business model assumptions
Compact experiment planning

Not good for

Tests without measurable observations

Outputs

Completed Test Card
A versioned plan with hypothesis, test, metric, and a success threshold set in advance.

Test Card

Fictional worked example

Four fields connect one critical assumption to a test, metric, and success threshold before execution.

Hypothesis

What must be true for the idea?

Project leads activate a weekly risk report when setup takes no more than two minutes.

Test

How will we test the hypothesis?

40 active project leads see a clickable setup dialogue for seven days.

Metric

Which observation counts as evidence?

Share of exposed project leads who complete the setup.

Success threshold

Which boundary applies before launch?

At least 12 completions from 40 valid exposures; stop after one privacy complaint.

Strategyzer: Validate Your Ideas with the Test Card

First step

Start with a prioritized assumption whose support or rejection affects a concrete product or business decision.

Open the method guide

Good to do first

Paper illustration of a calm four-quadrant Assumption Map with hypothesis cards and emphasis on important assumptions with little evidence.

Product Discovery

Assumption Mapping

Supplies a prioritized critical assumption as the starting point for the Test Card.

Where to go next?

Product Discovery

Learning Card

Evaluates evidence, learning, and the resulting decision after execution.

Product Strategy

Lean Canvas

Uses the completed test result to update affected business-model assumptions.

Deep dive

Purpose

The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success.

How it works

State one hypothesis, select an appropriate test, define the measurement, and set a success threshold before starting.

In detail

Four fields connect the assumption to an observable test. Specify the audience, measurement window, numerator, and denominator to make the metric precise. Keep the threshold unchanged during execution. An Experiment Canvas can hold the same information with additional constraints for more complex setups.

Facilitation

Work on one hypothesis per card and review whether it can be measured. Card preparation and test execution have separate time budgets. Reference an existing Experiment Canvas when it already contains the four planning fields.

The method guide walks execution through 4 phases, timing, 4 pitfalls, and clear stop criteria.

Open method guide

Your perspective

Does this method help with your work?

Your feedback helps shape the next improvements to methodatlas.

Sources and topics

Topics

Experiments Validation Discovery Hypothesis

Sources

Strategyzer: Validate Your Ideas with the Test Cardstrategyzer.comStrategyzer primary source for the Test Card's four fields: hypothesis, test, metric, and success threshold.

Artifact templates

Test Card: WorksheetPlan one decision-relevant test in a compact session. Execution and evaluation receive separate dates and artefacts.

canvas

test-card-working-template.md

Plan one decision-relevant test in a compact session. Execution and evaluation receive separate dates and artefacts.

Test Card: Worksheet

Question

To be confirmed

Desired outcome

To be confirmed

Scope

Complete Test Card Time: 20 to 35 minutes

Complete this worksheet on paper or in your own document during the work.

Preparation for this scope

Method setup

Materials: Test Card, prioritized assumption, available baseline, audience access, and information about privacy, ethics, and operational risks.
Roles: Test owner · Product · Research or Analytics · privacy or risk expert where needed
Advance information: Prepare the prioritized assumption, upcoming decision, available audience, known baseline, and relevant safeguard boundaries.
Overall time needed: 20 to 35 minutes for planning; execution is separate
Setup: Arrange the four fields visibly. Work through hypothesis, test, metric, and success threshold in that order, then freeze the card before launch.

Prepare for the work steps

Hypothesis: State the critical assumption

Prioritized assumption
Product or business model context
Upcoming decision

Test: Choose the smallest meaningful test

Testable hypothesis
Access to the audience or test environment
Time, cost, privacy, and risk constraints

Metric: Define the observable signal

Hypothesis and test procedure
Available data source
Relevant observation window

Success threshold: Set the threshold in advance

Defined metric
Baseline or justified reference value
Consequence of the later decision