Abstract
This study introduces some order-picking methods on the basis of a combination of both single and total order-picking methods and investigates suitable methods for given distribution center conditions. For this purpose, order-picking is considered as a dynamic transformation process from order-informaiton to items-marshalling and packaging, and a model is formulated using Q-GERT network. From simulation experiments performed by using standard data obtained from memo-motion study of order-picking related operations and established levels of experimental factors obtained from questionnaire results, it can be concretely pointed out that the advantages of various order-picking methods differ greatly depending on conditions. Also, order-picking design policies were classified according to conditions.
