Decision Matrix

Choose this exercise

Purpose: Compare multiple options systematically against agreed, weighted criteria to make trade-offs visible and reach an informed decision.

Use it when: Use when a team has three to six viable options, multiple competing criteria, and needs to resolve circular arguments or test a front-runner.

Skip it when: Skip when only one or two options exist, when the problem is unclear goals rather than option selection, or when a single person will make the decision regardless of group input.

Group arrangement: Whole group working on a shared grid, with silent individual scoring rounds followed by consensus discussions.

Timing: Based on the 60-90 minute standard workshop scope in the source evidence; set to 75 minutes for a 3-option, 4-criteria scenario.

Materials and tools

• 1 large flip chart, whiteboard, or wall paper grid
• Marker pens in 2 distinct colours
• Sticky notes (1 pad per table)
• 1 pen per participant
• Printed scoring slips or scratch paper for private scoring (1 pad)
• 1 calculator or spreadsheet laptop
• 1 wall reminder card showing the 1-5 scoring scale

Before participants arrive

1. Confirm the decision question and 3 to 6 viable options with the decision owner.
2. Draw an empty grid on the wall: options listed as column headers, rows reserved for criteria, and a bottom row for weighted totals.
3. Post the scoring scale reminder prominently: 1 = Poor, 2 = Fair, 3 = Adequate, 4 = Good, 5 = Excellent.

Say this to open

Welcome. Today we are using a Decision Matrix to evaluate our options. Our job is not to let the arithmetic make the decision for us. The arithmetic exists to make our thinking, priorities, and trade-offs visible. We will agree on what criteria matter, weight their relative importance, score our options criterion by criterion, and examine what the numbers tell us before deciding our next step.

How to run it

1. Frame the decision 10 minutes

   Read the central decision question aloud. Verify that everyone understands each candidate option on the grid. Confirm the ground rule: this tool informs judgment, but the decision owner remains accountable. Remind the room that higher scores are always better (1 to 5).

2. Define criteria 15 minutes

   Ask: 'What must these options deliver?' Give 2 minutes for silent generation of criteria on sticky notes. Collect and cluster duplicates on the left side of the grid. Select 4 to 6 criteria that distinguish options. Phrase each so higher is better (for example, write 'Ease of implementation' instead of 'Implementation difficulty').

3. Weight criteria 10 minutes

   Give each participant 10 points to distribute across the agreed criteria on paper. Tally the room's points per criterion, divide by the group size to get a 1 to 5 relative weight, and write the final integer weight next to each criterion row. Lock weights before moving on.

4. Score by criterion 25 minutes

   Evaluate one criterion row at a time across all options. For the active row, each person privately jots a score from 1 to 5 per option on scratch paper. Reveal scores simultaneously. If scores diverge by 2 or more points, invite the highest and lowest scorers to explain their rationale. Agree on one consensus score per cell through brief discussion (do not average). Record it on the grid.

5. Calculate and review totals 10 minutes

   Multiply each cell score by its row weight. Sum each column to produce the weighted total for each option. Highlight the totals. Ask the room whether the top option aligns with practical reality and check whether any option failed an essential non-negotiable requirement.

6. Debrief and assign next steps 5 minutes

   Summarize the findings and key trade-offs in one sentence. Check if anyone wishes to challenge or record a dissent. Name the owner and deadline for the final commitment.

Debrief questions

• Looking at the total scores and the individual rows, what trade-offs are we accepting if we pick the highest-scoring option?
• Did any score surprise you, and what assumption did that reveal?
• If we changed the weight of our top criterion, would our preferred choice change?

Finished output: A completed decision matrix with agreed weights, itemized consensus scores, total weighted scores, and a recorded next step with an assigned owner.

Remote

Use an online spreadsheet or digital whiteboard grid with columns for options and rows for criteria. Use direct chat messages or a private polling form for Step 4 silent scoring. Reveal the distribution, discuss outliers via audio, and type the consensus score directly into the shared sheet with auto-calculating weighted totals.

Hybrid

Maintain the master grid on a shared digital spreadsheet projected in the physical room and shared via screen share. In-person and remote participants both submit their individual scores simultaneously via a digital poll or chat to keep anchoring equal.

Access and participation choices

• Provide written descriptions of candidate options in advance for self-paced review.
• Silent writing phases ensure introverted participants contribute criteria and initial scores without verbal interruptions.
• Participants may pass on scoring specific criteria if they lack relevant domain expertise.

If the session gets stuck

A vocal participant tries to dominate scoring and anchor the room.

Enforce the private scoring slip step strictly. No one speaks their score until all slips or chat entries are shown simultaneously.

Scores for two top options end in a virtual tie.

Run a sensitivity check. Re-examine the highest-weighted criterion or test whether adjusting that weight flips the outcome, then discuss the specific trade-off directly.

Terms used here

• Consensus Score: A single score agreed upon through discussion of rationale, rather than a mathematical average that obscures disagreement.
• Sensitivity Check: Testing whether minor changes in criteria weights alter which option scores highest.