Planogram
concept
A planogram is the retailer’s plan for where each product belongs on a shelf: what should be here, in what order, and how many facings show to the shopper. A shelf check compares the real shelf against it to flag what is missing or misplaced.
Planogram compliance is how closely the actual shelf matches that plan. A shelf is fully compliant when four conditions hold: the product is present, the facing count is right, the left-to-right sequence follows the plan, and the price tag matches. Retailers measure it by store-walk audit, by staff photos, or by computer vision that checks every shelf on a schedule.
For engineers: the prescribed shelf layout used as ground truth for compliance scoring. Contrast with the realgram, what was actually seen at that spot recently.