methodatlas
Method guideFacilitation

Decision Jam

A practical method guide: clarify prerequisites and materials, understand the complete process, and look up outputs, pitfalls, and stop criteria.

ComplexityLow
Time60-90 min
Participants4-10
FormatWorkshop
MaturityEstablished
Plan Lightning Decision Jam
01

Prerequisite

What needs to be finished first

Complete firstDecision-ready scope

Core question, decision authority, and scope are clear.

Without clear scope, the result becomes an arbitrary collection without decision value.
Complete firstRelevant perspectives

Affected domain and user perspectives are represented.

Without them, material forces, options, or objections remain invisible.
02

Preparation

What needs to be ready before start

Materials

LDJ decision board, timer, notes, and decision log.

People / roles

Facilitator · decider · 3–8 affected participants

Pre-read

Collect existing evidence and constraints in advance.

Time needed

60–90 minutes

Setup

Prepare the canonical blank structure and make timeboxes visible.

03

Core question

The one question this method answers

Which most important problem will we address with which solution as the next experiment?

04

Flow

Phases with goal, actions, output and pitfall

AJ&Smart's Lightning Decision Jam separates silent problem notes, dot voting, HMW reframing, silent solutions, another vote, effort-impact decision, and test planning. The decider resolves ties.

LDJ decision board

Fictional LDJ run

The complete LDJ flow remains visible in distinct columns.

Silent problems

Example 1

Ownership unclear after reviews; actions stall.

Top priority

Example 2

Six votes; decider selects ownership gap.

HMW

Example 3

How might we visibly confirm ownership at closure?

Silent solutions

Example 4

Owner confirms card; closure shows missing owners; auto-reminder.

Effort/impact

Example 5

Owner confirmation: high impact, low effort.

Test

Example 6

Two reviews; ≥80% within 24 h; no longer review duration.

Silent problems
Keep the timebox; evaluate content only in the designated step.
Top priority
Keep the timebox; evaluate content only in the designated step.
HMW
Keep the timebox; evaluate content only in the designated step.
Silent solutions
Keep the timebox; evaluate content only in the designated step.
Effort/impact
Keep the timebox; evaluate content only in the designated step.
Test
Keep the timebox; evaluate content only in the designated step.

AJ&Smart: Lightning Decision Jam

  1. 1

    Problems

    Problems

    Goal

    Produce problem wall so “Which most important problem will we address with which solution as the next experiment?” can be answered with evidence.

    Inputs for this step

    • Concrete work context

    Actions

    • Write problems silently, read them out, and collect without debate.
    • Mark evidence, assumption, and open question directly.

    Output

    problem wall

    problem wall with evidence, owner, and next decision.

    Quality check

    Are problems concrete and solution-free?

    Pitfall

    Discussion begins before silent collection is complete. Restart the timer and complete silently.

    Timing: 10–20 minutes

  2. 2

    Priority

    Priority

    Goal

    Produce top problem so “Which most important problem will we address with which solution as the next experiment?” can be answered with evidence.

    Inputs for this step

    • problem wall

    Actions

    • Run dot voting and let the decider resolve ties.
    • Mark evidence, assumption, and open question directly.

    Output

    top problem

    top problem with evidence, owner, and next decision.

    Quality check

    Is exactly one problem selected for the next step?

    Pitfall

    Votes are treated as consensus or proof. Document authority and minority concerns.

    Timing: 10–20 minutes

  3. 3

    HMW question

    HMW question

    Goal

    Produce HMW question so “Which most important problem will we address with which solution as the next experiment?” can be answered with evidence.

    Inputs for this step

    • top problem

    Actions

    • Reframe the top problem positively and solution-neutrally as How Might We.
    • Mark evidence, assumption, and open question directly.

    Output

    HMW question

    HMW question with evidence, owner, and next decision.

    Quality check

    Does the question allow several solutions?

    Pitfall

    The HMW question already contains the favourite feature. Remove solution nouns and name desired impact.

    Timing: 10–20 minutes

  4. 4

    Solutions

    Solutions

    Goal

    Produce solution portfolio so “Which most important problem will we address with which solution as the next experiment?” can be answered with evidence.

    Inputs for this step

    • HMW question

    Actions

    • Sketch solutions silently, vote, and choose top ideas.
    • Mark evidence, assumption, and open question directly.

    Output

    solution portfolio

    solution portfolio with evidence, owner, and next decision.

    Quality check

    Are solutions concrete enough for effort/impact?

    Pitfall

    Verbally promoted ideas win through presentation skill. Equalise explanation time and vote on the note.

    Timing: 10–20 minutes

  5. 5

    Effort/impact

    Effort/impact

    Goal

    Produce experiment card so “Which most important problem will we address with which solution as the next experiment?” can be answered with evidence.

    Inputs for this step

    • solution portfolio

    Actions

    • Place top solutions on effort/impact and plan a test with a threshold.
    • Mark evidence, assumption, and open question directly.

    Output

    experiment card

    experiment card with evidence, owner, and next decision.

    Quality check

    Does the experiment define behaviour, threshold, and guardrail?

    Pitfall

    The winner becomes an implementation project immediately. Test small first and preset the next decision.

    Timing: 10–20 minutes

05

Artifact

What comes out at the end

Sketch: what the artifact looks like

Decision Jam · AJ&SmartSilently collect diffuse problems, cluster, prioritize, reframe, and translate them into a concrete experiment
Decision JamThe visual shows a Decision Jam with problem dump, cluster and vote, HMW reframe, solution ideas, and experiment.Move from diffuse frustration to a testable next stepDecision Jam forces silent collection, clear prioritization, and a small action instead of long debate.convergereframedecideProblem dumpcollect silently, withoutdiscussionCluster + Votefind patterns and choose toptopicHMWformulate top problem assolvable questionSolution ideasgenerate quick optionsExperimentsmallest next test with ownertoo slowunclear scopeTop 1Test A
Form

Versioned LDJ decision board with sources, assumptions, and next step.

Versioning / ownership

Retain date, scope, sources, assumptions, and decision for each version.

Tool alternatives
  • LDJ decision board
  • timer
  • decision log

decision-jam-working-template.md

Plan the session around the canonical method steps and a concrete decision.

Decision Jam: Worksheet

Question

To be confirmed

Desired outcome

To be confirmed

Scope

Full session Time: 60–90 minutes

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

Preparation for this scope

Method setup

  • Materials: LDJ decision board, timer, notes, and decision log.
  • Roles: Facilitator · decider · 3–8 affected participants
  • Advance information: Collect existing evidence and constraints in advance.
  • Overall time needed: 60–90 minutes
  • Setup: Prepare the canonical blank structure and make timeboxes visible.

Prepare for the work steps

Problems: Problems

  • Concrete work context

Priority: Priority

  • problem wall

HMW question: HMW question

  • top problem

Solutions: Solutions

  • HMW question

Effort/impact: Effort/impact

  • solution portfolio

LDJ decision board

Silent problems

...

Top priority

...

HMW

...

Silent solutions

...

Effort/impact

...

Test

...

Working policies

Silent problems ...

Top priority ...

HMW ...

Silent solutions ...

Effort/impact ...

Test ...

AJ&Smart: Lightning Decision Jam

Problems: Problems

Expected artifact: problem wall

problem wall with evidence, owner, and next decision.

Entry:

...

  • Are problems concrete and solution-free?

Priority: Priority

Expected artifact: top problem

top problem with evidence, owner, and next decision.

Entry:

...

  • Is exactly one problem selected for the next step?

HMW question: HMW question

Expected artifact: HMW question

HMW question with evidence, owner, and next decision.

Entry:

...

  • Does the question allow several solutions?

Solutions: Solutions

Expected artifact: solution portfolio

solution portfolio with evidence, owner, and next decision.

Entry:

...

  • Are solutions concrete enough for effort/impact?

Effort/impact: Effort/impact

Expected artifact: experiment card

experiment card with evidence, owner, and next decision.

Entry:

...

  • Does the experiment define behaviour, threshold, and guardrail?

Open questions and next steps

...

Method guide: https://methodatlas.meierhoff-systems.de/en/methods/decision-jam/run-sheet

06

Example output

Concrete filled scenario, fictional example

Fictional example for orientation. Counts and timings describe this case and are not universal requirements.

decision-jam-beispiel.md

Concrete filled scenario, fictional example

Fictional example: problem 'after reviews it is unclear who owns each action' receives six votes. HMW: how might we visibly confirm ownership at closure? Solution 'owner confirms the card before closure' receives five votes and sits at high impact/low effort. Test: two reviews, success ≥80% confirmed owners within 24 hours, guardrail no increase in review duration.

07

Pitfalls

Recognize symptoms and steer against them

Quick overview, the full text is in the matching phase in the flow

  1. ProblemsDiscussion begins before silent collection is complete.View in phase
  2. PriorityVotes are treated as consensus or proof.View in phase
  3. HMW questionThe HMW question already contains the favourite feature.View in phase
  4. SolutionsVerbally promoted ideas win through presentation skill.View in phase
  5. Effort/impactThe winner becomes an implementation project immediately.View in phase
08

Stop criteria

When to pause, resolve prerequisites, or choose another approach

The artefact answers the core question and open items are scheduled.
Owner, next step, and review date are named.

Method after Praxisgemeinschaft. The method emerged as a widespread practice and is not clearly attributed to a single originator or organization. Curated with 1 sources.

Sources: AJ&Smart: Lightning Decision Jam

Flow, timeboxes, and pitfalls are editorially curated practice recommendations based on the listed sources.

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