The storage assignment strategies establish the appropriate locations to assign to the SKUs in accordance with different heuristics. The DSS asks the behaviour of selected SKUs within the
demand profile for a selected time horizon. Information on the picking processes is collected to compute a panel of metrics used for SKU classification. Specifically, an index-based assignment
policy classifies the overall set of SKUs according to the effective criteria as the popularity (P) (i.e., number of requests per each SKU), the turn-over (T) (i.e., the ratio of the demand to the inventory for each SKU), the cube-per-order index (COI), the order closing (OC) (i.e., the ability of an item to close an order).