What is an impact/effort matrix?
The impact/effort matrix is the quickest way to sort a list of improvement ideas. Each idea is placed by two questions: how much difference would it make, and how much would it take? The answer is visual: ideas in the top-left corner give the most benefit for the least work. It is ideal after a brainstorm, a gemba walk or a waste walk, when the team has more ideas than time.
The four quadrants
| Quadrant | Impact / effort | What to do |
|---|---|---|
| Quick wins | High / low | Do now; they build momentum |
| Major projects | High / high | Plan, resource and schedule them |
| Fill-ins | Low / low | Do when there is spare capacity, or as kaizens |
| Thankless tasks | Low / high | Drop them, or find a cheaper way |
Impact/effort matrix example
A QC laboratory lists ten improvement ideas. Three are quick wins: automatic reminders for stability pulls, standard report templates and colour-coded sample racks; moving the balance next to the prep area is a fill-in for a quiet afternoon. Barcode scanning at sample receipt, a second HPLC and a full layout redesign are major projects to plan. Re-validating every legacy method and an extra check on low-risk tests are thankless: a lot of work for little benefit, so the team drops them.
Tips
- Define impact and effort before rating, so everyone uses the same yardstick.
- Rate relative to the other ideas, not in absolute terms.
- Use more criteria for big decisions with a decision matrix.
- Turn quick wins into actions on an action plan right away.
How to use this Impact/Effort Matrix tool
- List the ideas. Add each idea or improvement action to the table or with + on the matrix.
- Rate impact and effort. Give each idea an impact and an effort score from 1 to 10, relative to the others.
- Adjust on the matrix. Drag dots to re-rate ideas as the team discusses them.
- Read the quadrants. The list on the right groups ideas into quick wins, major projects, fill-ins and thankless tasks.
- Assign owners. Give quick wins an owner and plan the major projects.
- Export. Export the matrix to PNG or PDF, or the list to Excel.
Frequently asked questions
What is an impact/effort matrix?
An impact/effort matrix (also called an action priority matrix or PICK chart) plots ideas on two axes: the impact they would have and the effort they would take. The four quadrants (quick wins, major projects, fill-ins and thankless tasks) show which ideas to do first.
What are the four quadrants?
Quick wins (high impact, low effort): do them first. Major projects (high impact, high effort): plan and resource them. Fill-ins (low impact, low effort): do them when there is spare time. Thankless tasks (low impact, high effort): avoid them or rethink them.
How do you rate impact and effort?
Agree what each means before rating. Impact might combine customer benefit, savings and risk reduction; effort might combine cost, time and people needed. Rate each idea from 1 to 10 relative to the other ideas, ideally as a group. Exact numbers matter less than the relative positions.
What is a PICK chart?
PICK stands for Possible, Implement, Challenge, Kill: the same four quadrants with different names. Implement = quick wins, Challenge = major projects, Possible = fill-ins, Kill = thankless tasks.
Is an impact/effort matrix enough to choose projects?
It is a fast first screen. When more than two criteria matter, or the decision is significant, follow it with a decision matrix or prioritization matrix that weights several criteria.
Why are some quick wins not done?
Ratings are estimates. Before committing, sanity-check quick wins with the people who would do the work; some turn out to need more effort than they seemed. Revisit the matrix after the first actions.