In manual order picking systems, order pickers walk or drive through a distribution warehouse inorder to collect items which are requested by (internal or external) customers. In order to performthese operations efficiently, it is usually required that customer orders are combined into (more...

Order picking - as a warehouse function - is often considered to be critical for the public manifestation of a supply chain. Underperformance can result both in unsatisfactory customer service and in high cost. In this paper the author will give an overview of planning problems and corresponding...