Esther Schindler writes "You don't think of your supermarket as the source of geeky innovation, but you may be surprised. For example, in Steven Cherry's Supermarkets Are High-Tech Hotbeds, a Techwise Conversation with Kurt Kendall, a partner and director at Kurt Salmon, where he heads the analytics practice there, we learn: 'A lot of supermarket tech is at the checkout area. Bar-code scanning was already old hat when U.S. president George Bush the elder was allegedly amazed by them in 1992, and retailers continue to experiment with the next logical step: self-checkout systems. There's a lot of technologies out there right now that are being introduced into the retail space to understand what consumers are doing in the store, and heat-mapping is one of those technologies--using cameras in the ceiling to actually track where the consumer's going. What this information tells the retailer is where a consumer is, how they're moving around the store, whether they're dwelling in certain places, like checkout or in front of specific merchandise."