Decision Companion— AHP System

Setup

Criteria

Importance

Evaluate

Results

What are you deciding?

Set your decision context, then explore the guide below before naming your criteria.

Decision statement

Number of criteria (2–10)

Number of alternatives (2–8)

Reference Guide

Criterion Type — Benefit vs Cost ▼

↑ Benefit — Higher is better

You want the alternative with the highest value. Scores are normalized directly.

Performance score · Revenue · Customer rating · Speed (faster=better) · Accuracy %

↓ Cost — Lower is better

You want the alternative with the lowest value. Values are automatically inverted so cheaper options score higher.

Price ($) · Delivery time (days) · Energy use (kWh) · Error rate % · Maintenance cost

Evaluation Mode — Objective, Subjective, Uncertain ▼

⊞ Objective — I have real numbers

Enter the actual measured value for each alternative. The system normalizes them automatically. Use this whenever possible.

Price = $500 · RAM = 16GB · Speed = 120ms · Rating = 4.7 · Weight = 1.4kg

⊟ Subjective — I'll compare by feel

No hard data. You answer simple "which is better and by how much?" questions for each pair of alternatives using a slider — no matrix needed.

Design quality · Brand reputation · Ease of use · Team expertise · Cultural fit

◈ Uncertain — I have estimates with risk

You have a best-guess value (mean) and an uncertainty/risk estimate (variance). Set your risk tolerance λ. Score = Mean − λ × Variance.

Projected revenue · Estimated timelines · Investment returns · Forecasted demand

Pairwise Comparison Scale — How the sliders work ▼

Used when comparing criteria importance and for subjective criteria. Move the slider to indicate your preference.

Value	Meaning	Example
1	Equal	Both options are equally important / preferred
3	Moderate	One is slightly more preferred based on experience
5	Strong	Clearly more preferred; demonstrated in practice
7	Very Strong	Dominates clearly; very strong evidence
9	Extreme	Absolutely dominant; highest possible preference
2,4,6,8	In-between	When you need a shade between two levels
Left of center	Left side preferred	Slider left = left item is more important
Right of center	Right side preferred	Slider right = right item is more important

Consistency Ratio (CR) ≤ 0.10 means your comparisons are logically consistent. If CR > 0.10, some of your judgments may contradict each other.

Risk Tolerance (λ) — For Uncertain mode ▼

Formula: Adjusted Score = Mean − λ × Variance

λ value	Profile	Effect
0	Risk-neutral	Ignores uncertainty — only the mean matters
0.5	Mildly cautious	Small penalty for high-variance options
1	Moderate (default)	Balanced trade-off between return and risk
2–3	Risk-averse	Strongly penalises uncertain options
>5	Very risk-averse	Almost always picks the most stable option

Define criteria & alternatives

Name each criterion, set its type and how it will be evaluated. Objective is the default — switch to Subjective or Uncertain if needed.

Criteria

Alternatives

How important is each criterion?

For each pair, move the slider toward the criterion that matters more — and how much more.

Evaluate each alternative

Enter values for objective criteria, answer comparison questions for subjective, or provide estimates for uncertain ones.

Analysis complete

Your structured decision recommendation based on AHP.