This paper deals with lot sizing and scheduling for a single-stage production System where setup costs and times are sequence dependent. A large bücket mixed integer programming (MIP) model is formulated which considers only efficient sequences. A tailor-made enumeration method of the...

A new model is presented for capacitated lot-sizing with sequence dependent setup costs. The model is solved heuristically with a backward oriented method; the sequence and lot-size decisions are based on a priority rule which consists of a convex combination of setup and holding costs. A...

Purpose: Production planning and control has crucial impact on the production and business activities of enterprise. Enterprise Resource Planning (ERP) is the most popular resources planning and management system, however there are some shortcomings and deficiencies in the production planning...

Purpose: Industry 4.0 technologies significantly impact how production is planned, scheduled, and controlled. Literature provides different classifications of the tasks and functions of production planning and control (PPC) like the German Aachen PPC model. This research aims to identify and...

Produktionssimulationen können bei der Abschätzung der komplexen Folgen von Änderungen in der Produktionsplanung auf nachgelagerte Unternehmensteile einen sinnvollen Beitrag leisten. Am Fallbeispiel eines mittelständischen Produktionsunternehmens wird gezeigt, wie eine solche...

In today's production environment with shortened product lifecycles, phase-outs, i.e. product elimination from production, become regular events. Badly planned phase-outs lead to high remaining stock levels after end of production, causing immense sunk costs. Previously performed 26 interviews...

Purpose: Although firms try to shorten time-to-market, the duration of product development projects might anyway jeopardize the assumptions made at the beginning of the design process. This includes the definition of product attributes for ensuring customer satisfaction, thus forecasting...