Product Discovery Research method

MVP Test Matrix

Matches critical assumptions to a test whose evidence strength, cost, duration, and realism fit the next decision.

The matrix prevents MVP from automatically meaning a small product. A fake door can test demand, concierge can observe value in a workflow, Wizard of Oz can test use of a manually delivered service, and a functional prototype can test feasibility. A test only answers the assumption it was designed for.

Core question

Which smallest test provides enough evidence for each critical assumption to support the next investment decision?

Plan MVP Test Matrix Method guide

Start comparison

Give feedbackIs this method useful to you?

Participants: 2-8
Time: 45-75 min

Test type follows the assumption. Fake door, concierge, Wizard of Oz, prototype, and spike create different evidence and cannot support the same claim.

Paper illustration of MVP Test Matrix with a method-specific labelled workspace.

Assumptions
Bound decision and assumptions
Expose critical desirability, viability, feasibility, and adaptability assumptions.
Match
Match test type to evidence need
Choose a test type with suitable evidence strength and realism for each top assumption.
Protocol
Make the test decision-capable
Document population, procedure, metric, threshold, and guardrails before launch.
Sequence
Plan evidence ladder and next test
Set the next test and the condition for moving to stronger evidence.

Start with cheaper, weaker evidence and move deliberately toward behaviourally stronger tests when results justify it.

A good fit when

Useful when critical assumptions and an investment decision are known. Use interviews or field observation first for open problem discovery.

Ideal for

Discovery coaching
Innovation teams
Test backlog building

Not good for

Pure execution sprints

Outputs

Assumption-test mapping
Critical assumptions with suitable test type, evidence strength, effort, and explicit limit.
Sequenced MVP test plan
Pre-set rules, guardrails, owners, and transition to the next stronger test.

MVP Test Matrix

Fictional worked example

Connect assumptions to test type, evidence strength, effort, and a pre-set decision.

MVP Test Matrix
Assumption	Critical assumption	Suitable test type	Observation and evidence	Effort and guardrail	Threshold and next test
Review useDesirability before automation	Project leads use audit-ready exports in monthly reviews.	Concierge: manually prepared export for 12 suitable teams.	Observed review use; stronger than stated intent, no self-service evidence yet.	5 working days; no sensitive production data; stop on compliance objection.	Pass ≥8 in review and ≥6 using a chart; then clickable prototype, else revisit segment/job.

1. Critical assumption
Review use
Project leads use audit-ready exports in monthly reviews.
2. Suitable test type
Review use
Concierge: manually prepared export for 12 suitable teams.
3. Observation and evidence
Review use
Observed review use; stronger than stated intent, no self-service evidence yet.
4. Effort and guardrail
Review use
5 working days; no sensitive production data; stop on compliance objection.
5. Threshold and next test
Review use
Pass ≥8 in review and ≥6 using a chart; then clickable prototype, else revisit segment/job.

An MVP test validates only the assumption its measure actually addresses.

Strategyzer: Select the Next Best Test

First step

Start with the core question: Which smallest test provides enough evidence for each critical assumption to support the next investment decision?

Open the method guide

Good to do first

Product Discovery

Hypothesis Prioritization Canvas

Supplies prioritized assumptions to which a matching test type is assigned here.

Where to go next?

Product Discovery

Smoke Test

Implements the matrix's cheapest test stage as the first real demand test.

Product Discovery

Fake Door Test

Uses a fake door as an early, evidence-rich test stage for desirability.

Product Discovery

Concierge MVP

Implements a more elaborate, realistic test stage for validated assumptions.

Deep dive

Purpose

When several minimal variants compete to answer the same question, it makes comparing and choosing between them cleaner. It separates problem, assumption, solution, and evidence. The result is captured as a Test Matrix and a Test Plan.

How it works

It places possible MVP forms alongside the hypotheses they are meant to test and the matching measurement logic. The comparison shows which test form delivers enough evidence and which variant would be too large or too weak.

In detail

The MVP Test Matrix is based on work by Strategyzer and David Bland. It maps assumptions across three dimensions, often desirability, feasibility, and viability, and shows which test design fits each assumption best. That prevents teams from reflexively using the same format for every risk.

Facilitation

Bring concrete examples of common test formats. Ask the team to explain why a format fits, not only which one they choose.

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 Options

Sources

Strategyzer: Select the Next Best Teststrategyzer.comStrategyzer article by David J. Bland on choosing experiments; covers criteria such as speed, repetition, and strength of evidence.

Artifact templates

MVP Test Matrix: WorksheetPlan MVP Test Matrix with real scope, suitable roles, and a clear decision objective.

markdown

mvp-test-matrix-working-template.md

Plan MVP Test Matrix with real scope, suitable roles, and a clear decision objective.

MVP Test Matrix: Worksheet

Question

To be confirmed

Desired outcome

To be confirmed

Scope

Plan the full workshop Time: 45–60 minutes for selection and protocol

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

Preparation for this scope

Method setup

Materials: Assumption portfolio, test-type catalogue, audience access, cost and time constraints, analytics plan, and ethics review.
Roles: Product · Research · Engineering · Analytics · experiment owner
Advance information: Prepare top assumptions, current evidence, and the next irreversible investment.
Overall time needed: 45–60 minutes for selection and protocol
Setup: Compare test types by evidence strength, setup time, run time, cost, and realism.

Prepare for the work steps

Assumptions: Bound decision and assumptions

Upcoming investment decision
Product or business model
Current evidence

Match: Match test type to evidence need

Prioritised assumptions
Available test types
Audience access and constraints

Protocol: Make the test decision-capable

Selected test type
Audience and channel
Baseline or comparison

Sequence: Plan evidence ladder and next test

Test protocols
Investment stages
Time and cost budget

MVP Test Matrix

Assumption	assumption · dimension	fake door/concierge/wizard/prototype/spike	behaviour · strength · limit	duration · cost · guardrail	pass · fail · next
Review use

Review use: Desirability before automation

Choose test type after assumption and decision; record the evidence limit.

Strategyzer: Select the Next Best Test

Assumptions: Bound decision and assumptions

Expected artifact: Assumption portfolio

Dimension · assumption · evidence gap · decision

Entry:

...

Is it clear which decision each test supports?

Match: Match test type to evidence need

Expected artifact: Test matrix

Assumption · test type · evidence strength · effort · limit

Entry:

...

Does the test measure the claimed dimension?

Protocol: Make the test decision-capable

Expected artifact: Test protocol

Population · procedure · metric · threshold · guardrail · decision

Entry:

...

Can the team evaluate results without inventing new rules?

Sequence: Plan evidence ladder and next test

Expected artifact: Sequenced test plan

Now · threshold · next · owner · review

Entry:

...

Does evidence strength increase only after a viable result?

Open questions and next steps

...

Method guide: https://methodatlas.meierhoff-systems.de/en/methods/mvp-test-matrix/run-sheet

Alternatives and neighbors

Fitting alternatives with decision guidance, followed by other related methods.

All methods

Product Discovery

Experiment Canvas

Instead of MVP Test Matrix, choose Experiment Canvas when you want to clearly prepare an experiment with goal, hypothesis, measurement, and risk.

Product Discovery

Riskiest Assumption Test

Moves customer problem, solution idea, and evidence toward a concrete result through "collect assumptions explicitly", "rate uncertainty and leverage for each assumption", and "decide to pivot, persevere, or stop".