Ahlem Rhayem Andrea Cimmino Juan Cano María Poveda-Villalón Raúl Garcia-Castro This ontology model the market-place information for AURORAL A relationship between the consumer and the product he buys buy A relationship between the product and its category has category A relationship between the product and its quantity in the stock has quantity A relationship between product and salespeople sell The address details of the consumer address The identifier of the product category id The name of the product category category name The category type of the product category type The identifier of the customer has id The name of the customer has name The identifier of the product product id The product name product name The identifier of the seller seller id The name of the seller seller name The identifier of the stock stock id The quantity of the stock stock quantity Users responsible for selling or consuming a product User The category of the product Category The users that consumes a product Customer It is the item that will be sold Product The users that sell a product Seller The items available for sale in a store Stock