Sistema y método de suministro de productos

There is provided a system (10) for determining a list of products in response to a client request received from a client device during a request/response session, the client request comprising one or more request parameters, the system comprising a product estimator configured to determine a list of main products, said list of main products comprising an estimation of the one or more main products matching said client request. The system further cooperates with an auxiliary product estimation database storing historical data related to sets of auxiliary products, the historical data being represented by a tree data structure (8) comprising nodes. The system further comprises an auxiliary product estimator (102) for determining, from the tree data structure, an occurrence frequency and an auxiliary product value information for each auxiliary product set in a list of auxiliary product sets, in response to the client request, the list of auxiliary product sets comprising at least one auxiliary product set. The system provides a list of candidate auxiliary products for each main product determined in response to the client request using the occurrence frequency and the auxiliary product information value determined for each auxiliary product set of said list of auxiliary product sets.