We consider the on-line business-to-customer (B2C) e-commerce supply chain scheduling problem where customers generate orders on-line that have to be picked from the shelves in a warehouse and delivered to the customers in different zones. The problem is identified as a specific integrated production-delivery problem, named on-line order picking and delivery problem with multiple delivery zones and limited vehicle capacity. The orders are grouped into batches and delivered to their assigned zones by the capacitated vehicles. The objective is to minimize the total cost, which is the sum of the ...
