HOORO is the unique Italian Retail Tech start-up with a worldwide landscape to develop predictive models of Machine Learning on Out-Of-Stock (lack of product on the shelf) thanks to the peculiar proprietary device, covered by a patent, in the Food/Grocery Retail intercepts the consumer's purchase act at the brick&mortar store and optimizes on-shelf and warehouse inventory. The objectives are the optimization of business processes and of the entire supply chain, the predictive analysis of the sale of products in the channel and an enriched consumer experience.