Order-driven flexibility management in make-to-order companies with flexible shops

Süer, Bekir İlker
In this study, an operational (short term) flexibility management approach is proposed for make-to-order companies with flexible shops. Order Review and Release (ORR) techniques and typical Flexible Manufacturing System (FMS) decisions are combined in this method. The proposed method prepares a shop environment by allocating process and routing flexibility types at different levels to the shop in each production cycle. Variety, volume, and criticality of the part types in the pool and the anticipated orders constitute the main inputs for flexibility allocation. A flexibility management policy is introduced and determination of the proper policy is realized with the integrated utilization of mathematical programming and simulation modeling. An experimental study is performed to investigate the effects of proposed method on a hypothetical flexible shop. Results show that with an appropriate policy, periodical and online flexibility management can be an effective tool to cope with uncertainty in demand if combined with ORR techniques.


Multi-item inventory-routing problem for an FMCG company
Zerman, Erel; Kırca, Ömer; Department of Industrial Engineering (2007)
In this study, inventoryrouting system of a company operating in Fast Moving Consumer Goods (FMCG) industry is analyzed. The company has decided to redesign distribution system by locating regional warehouses between production plants and customers. The warehouses in the system are all allowed to hold stock without any capacity restriction. The customers are replenished by the warehouse to which they have been assigned. Customer stocks are continuously monitored by the warehouse and deliveries are to be sch...
Capacity allocation problem in flexible manufacturing systems: branch and bound based approaches
ÖZPEYNİRCİ, SELİN; Azizoğlu, Meral (Informa UK Limited, 2009-01-01)
This study considers an operation assignment and capacity allocation problem that arises in flexible manufacturing systems. The machines have limited time and tool magazine capacities and the available tools are limited. Our objective is to maximise total weight of assigned operations. We develop a branch and bound algorithm that finds the optimal solutions and a beam search algorithm that finds high quality solutions in polynomial time.
Analysis of a two-echelon multi-item inventory system with postponement
Eryılmaz, Hande; Meral, Fatma Sedef; Department of Industrial Engineering (2010)
Increased product proliferation and global competition are forcing companies within the supply chain to adopt new strategies. Postponement is an effective strategy that allows companies to be agile and cost effective in dealing with the dynamics of global supply chains. Postponement centres around delaying activities in the supply chain until real information about the market is available, which reduces the complexity and uncertainty of dealing with a proliferation of products. A two-echelon divergent suppl...
Optimal pricing and production decisions in reusable container systems
Atamer, Büşra; Bakal, İsmail Serdar; Department of Industrial Engineering (2010)
In this study, we focus on pricing and production decisions in reusable container systems with stochastic demand. We consider a producer that sells a single product to the customers in reusable containers with two supply options: (i) brand-new containers, (ii) returned containers from customers. Customers purchasing the products may return the containers to the producer to receive a deposit price. The return quantity depends on both customer demand and the deposit price determined by the producer. Hence, th...
Flexibility analysis: a methodology and a case study
Kahyaoglu, Y; Kayaligil, S; Buzacott, JA (Informa UK Limited, 2002-11-10)
A methodology for analysing manufacturing flexibility is proposed. A real-life case is discussed to demonstrate the proposed methodology. The case involves the grinding operations of an engine manufacturer. As an integral part of the methodology, statistical analyses using response surface methodology are carried out. Potential applications of the proposed methodology are discussed. Planning models and flexibility measure used are outlined in the appendices.
Citation Formats
B. İ. Süer, “Order-driven flexibility management in make-to-order companies with flexible shops,” M.S. - Master of Science, Middle East Technical University, 2009.