Feature dimensions (rows)
Choose five to eight dimensions that actually drive purchase decisions for your target buyer — not everything your product does. Examples: mobile-first UX, whiteboard scanning, offline support, brand-aware output, pricing tier, integrations, team collaboration. Write these as rows.
Competitors (columns)
Write your product in the leftmost column, then each key competitor. Limit to five competitors — more than five and the matrix becomes noise. If you have fifteen, group the minor ones and only show the top four plus one aggregate 'others' column.
Ratings
For each cell: a symbol or score — checkmark (strong), tilde (partial), X (missing). Keep it binary or three-state; more granularity than that isn't readable on a whiteboard. Write brief notes in the cells where 'partial' needs explanation.
Buyer importance weights
Add a weight column on the right edge — how much does this dimension matter to the buyer? Score 1–3. This turns the matrix into a weighted comparison, not just a feature checklist. The dimensions your buyer cares most about should be the ones where you win.
Gap / opportunity row
Bottom row: for each competitor, one word — their biggest gap. This is your attack surface. Where your gap intersects with high buyer importance and competitor weakness is your wedge.