Pimentel, CarinaAlvelos, FilipeCarvalho, J.M. Valério deDuarte, António2012-07-242012-07-242009Pimentel, Carina; Alvelos, Filipe; Carvalho, J.M. Valério; Duarte, António J.S.T. (2009). Solution methods for an integrated lot sizing and scheduling problem. In EURO 2009 - 23rd European Conference on Operations Research. Bonnhttp://hdl.handle.net/10198/7305In this talk we present results of an ongoing study, based on a problem of a textile factory. The core problem is an integrated lotsizing and scheduling one, characterized by sets of parallel machines, arbitrary demands and due dates for products, a compatibility matrix between machines and components and release dates of machines. In a solution, the quantities to produce by product/component/size are split among smaller lots, the machines in which those lots will be produced are determined, as well as the order in which they will be done. We present a MIP model and results of a VNS heuristic.engconference object