Compare RICE, ICE, Weighted Scoring, Impact/Effort, and Kano. Choose a framework that gives you enough information to explain your decision.
Last updated: 2026-04-01
These methods support quick initial comparisons. ICE uses Impact x Confidence x Ease on a 1-10 scale. Impact/Effort is a 2x2 matrix you fill out in a workshop.
Best for early-stage teams, growth experiments, and any moment when the cost of a slightly wrong decision is less than the cost of a long deliberation.
These methods make scoring assumptions explicit. RICE was created by Sean McBride at Intercom and uses Reach, Impact, Confidence, and Effort. Weighted Scoring is a custom matrix where you pick the criteria.
Best for mature teams, cross-functional initiatives, and any moment when stakeholders will scrutinize the priority order.
ICE = Impact x Confidence x Ease (each 1-10). Impact/Effort = 2x2 grid.Both are subjective by design. The strength is speed. ICE was developed by Sean Ellis. Impact/Effort groups ideas by estimated value and delivery effort.
RICE = (Reach x Impact x Confidence%) / Effort. Weighted = sum of (criterion score x weight).RICE makes reach an explicit input. Weighted scoring uses criteria and weights agreed by the decision-makers.
| Criteria | Lightweight | Structured |
|---|---|---|
| Speed | Quick initial estimates | More preparation for inputs and rubrics |
| Data needed | Evidence and shared scoring definitions | Reach analytics (RICE) or strategic weights (Weighted) |
| Backlog approach | Initial grouping or triage | More detailed scoring, in stages if needed |
| Defensibility | Lower. Subjective inputs | Makes assumptions visible; scores still need judgment |
| Stakeholder fit | Internal team | Cross-functional, leadership, investors |
| Where they break | Long backlogs, contentious decisions | Unreliable estimates or criteria that miss important needs |
| Method | ICE: three-factor score. Impact/Effort: two-axis matrix | RICE: four factors. Weighted: custom criteria and weights |
| Pairs well with | Each other; Kano for strategy | Each other; Kano for strategy |
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Use your own inputs to explore the calculations and compare results.
Impact/Effort or ICE can help with quick triage. RICE adds explicit reach and effort estimates. Weighted scoring fits decisions that need custom criteria. Choose based on what the decision needs, rather than company stage alone.
Yes. For example, use Impact/Effort in a workshop, then RICE for a more detailed comparison. Kano research can inform either. Add a second method only if it supplies useful information.
RICE multiplies Reach, Impact, and Confidence, then divides by Effort. ICE multiplies Impact, Confidence, and Ease in this toolkit. ICE has no separate Reach factor, and Ease uses a rating rather than person-months.
When important benefits or constraints are missing from the standard factors. Weighted scoring lets you compare those criteria explicitly. Mandatory requirements and dependencies may need to be handled outside any ranking.
Kano classifies how features affect satisfaction using paired survey questions. It helps inform investment choices but does not set a delivery order or account for effort. Pair it with another method when you need those decisions.
Score enough to support the decision. A workshop might review 20 or 50 items; a larger backlog can be scored in stages. The method does not impose a reliable item-count limit.
Review the inputs, missing criteria, dependencies, and commitments. The score supports judgment; it does not replace it. Document a reason for overriding the ranking instead of changing inputs just to produce a preferred answer.