1. A digital point-of-sale system comprising: a product identification unit to: receive at least one captured image of a product display, the at least one captured image including a plurality of products including physical product features, the at least one captured image further including at least one product label; and analyze the at least one captured image to identify each of the plurality of products in the at least one captured image by matching the physical product features determined from the at least one captured image with physical product features determined from a plurality of product templates stored in a data store; a key performance indicator (KPI) unit to: identify, for each identified product in the at least one captured image, a proximally located product label of the at least one product label; recognize a product price on the proximally located product label; and determine whether the proximally located product label is a correct label for the identified product in response to a determination of whether the product price on the proximally located product label is within a predetermined range of prices stored in the data store for the identified product; and a realogram creation unit to generate a realogram from the identified plurality of products and product templates, wherein the realogram includes an electronically-generated diagram of the product display.