Kurze Durchlaufzeiten trotz kundenorientierter, variantenreicher Produktion sind in vielen Branchen Bestandteil einer unverzichtbaren Wettbewerbsstrategie. Da die unterschiedlichen Varianten i.d.R. in Konkurrenz um die verfügbare Kapazität der Fertigungsanlagen stehen, ist ein erhöhter...

This paper considers the dynamic lot sizing problem of H. M. Wagner and T. M. Whitin with the assumption that the total cost of n setups is a concave nondecreasing function of n. Such setup costs could arise from the worker learning in setups and/or technological improvements in setup methods....

We present a model for the vehicle and crew scheduling problem in urban public transport Systems by combining models for vehicle and crew scheduling that cover a great variety of real world aspects, especially constraints for crews resulting from wage agreements and internal regulations. The...