Eisenhower vs impact and effort vs MoSCoW.
Each method answers a different question. Pick the one that matches the decision in front of you. Then make sure everyone gets an equal say in it.
The short answer. Use the Eisenhower matrix to decide what to do now and what to plan for. Use impact and effort to choose between projects or ideas. Use MoSCoW to agree what goes into a fixed scope or deadline. Use a 100-point budget when everything feels important and you need to force a trade-off.
Side by side
| Eisenhower matrix | Impact and effort | MoSCoW | 100-point budget | |
|---|---|---|---|---|
| Question it answers | What needs doing now, and what needs planning? | Which options give the most for the least? | What's in and out of this release or project? | Where should limited effort go? |
| How it works | Two axes: urgency and importance | Two axes: impact and effort | Four groups: must, should, could, won't | Spread 100 points across options |
| Output | Do, schedule, delegate, drop | Quick wins, big bets, fill-ins, money pits | A scoped list | A ranked list with relative weights |
| Best for | Workloads, initiatives, strategy day lists | Projects, product ideas, improvements | Fixed deadlines, software and project scope | Budgets, competing priorities, investment |
| Weak spot | People define urgent differently | Effort estimates are often wrong | Everything drifts into "must have" | Big options can soak up all the points |
| With a team | Vote privately, then compare spread | Vote privately, then compare spread | Usually decided by discussion | Each person spends their own 100 |
The Eisenhower matrix
Sort each item by how urgent it is and how important it is. The four quadrants tell you to do it, schedule it, delegate it or drop it. It's strongest when the question is about time: what deserves attention now, and what deserves a date in the diary.
Its weakness is that "urgent" is slippery. One person means "due this week". Another means "the client keeps asking". Agree definitions before you score. The full guide.
The impact effort matrix
Also called the action priority matrix or value versus effort. Plot each option by the impact it would have and the effort it would take.
- Quick wins: high impact, low effort. Do these.
- Big bets: high impact, high effort. Pick a few and plan them properly.
- Fill-ins: low impact, low effort. Do them when there's slack.
- Money pits: low impact, high effort. Avoid.
It's the better choice when nothing is urgent and you're choosing between ideas. The catch is effort. People underestimate it, especially for work they're excited about. Ask the people who'll do the work to score it.
MoSCoW
MoSCoW sorts requirements into four groups. Dai Clegg developed it in 1994 for rapid application development, and it became a core part of the DSDM agile method.
- Must have: the delivery fails without it.
- Should have: important, but the delivery still works without it.
- Could have: nice to include if time allows.
- Won't have this time: agreed to be out of scope for now.
It suits a fixed deadline, where the question is what fits. It's weaker for strategy, because it doesn't ask how important something is relative to everything else. In practice, "must have" lists grow until they're meaningless. A common rule is to keep must-haves to no more than 60% of the effort.
The 100-point budget
Give each person 100 points to spread across the options however they like. They can put 50 on one thing or spread them thinly. Add up the points. It works when every option sounds important and scoring them one at a time gives you a list of nines. Spending a fixed budget makes people choose.
It's one of the ten tools in Strategy O'Clock, and it pairs well with the Eisenhower matrix. Use the matrix to shortlist, then the budget to rank the shortlist.
What about Covey's matrix?
Stephen Covey's time management matrix is the Eisenhower matrix with different labels. He numbered the quadrants I to IV and named quadrant II, important but not urgent, as the one to protect. See the comparison.
How to choose
- Is there a fixed deadline or scope?Use MoSCoW to decide what's in.
- Is the question about time and attention?Use the Eisenhower matrix.
- Are you choosing between projects or ideas?Use impact and effort.
- Does everything score as important?Use a 100-point budget to force the trade-off.
Whatever you pick, vote before you talk
All four methods share one problem in a group. The first opinion anchors the rest, and the most senior person settles anything close. Collect scores privately first. Show the spread, not just the average. Discuss the items people disagree on. Then decide.
The team Eisenhower matrix on this site works that way, and you can switch its axes to impact and effort or risk and reward. For a full session, see how to run a prioritisation workshop.
Questions
What is the most famous decision matrix?
The Eisenhower matrix is probably the best known prioritisation grid. For choosing between options against several weighted criteria, the weighted decision matrix, sometimes called a Pugh matrix, is the classic.
What are the four categories of the MoSCoW model?
Must have, should have, could have, and won't have this time.
What is the best prioritisation method?
The one that matches your question. Time and attention: Eisenhower. Choosing projects: impact and effort. Fixed scope: MoSCoW. Forcing trade-offs: a 100-point budget. How you run it matters as much as which you pick.
Can I combine methods?
Yes, and it often works better. A common sequence is to shortlist with an Eisenhower or impact and effort vote, rank the shortlist with a 100-point budget, then check confidence in the final plan.