A computer model is built to simulate master production scheduling activities in a capacitated multi-item production system under demand uncertainty and a rolling time horizon. The output from the simulation is analyzed through statistical software. The results of the study show that forecasting errors have significant impacts on total cost, schedule instability and system service level, and th...

background operating room (or) planning involves the creation of a “master surgical schedule” in which surgeons are assigned to specific operating rooms (ors) on specific days of a week. the master schedule is typically one or two weeks long repeatable for several months. objectives the purpose of this study was to recommend using a mathematical program to generate a rotation in a way that the ...

In recent decades, manufacturers’ intense competitiveness to suit consumer expectations has compelled them abandon the conventional workflow in favour of a more flexible one. This new trend increased importance master production schedule and make-to-order (MTO) strategy concepts. The former improves overall planning controls complexity. latter enables businesses reinforce their flexibility prod...

One of the key elements in production planning hierarchy is master production scheduling. The aim of this study is to evaluate and compare thirteen alternative MPS development methods, including multi-objective optimization as well as twelve heuristics, in different operating conditions for multi-product single-level capacity-constrained production systems. We extract six critical criteria from...

Due to the progress of high technology, TFT-LCD (Thin Film Transistor – Liquid Crystal Display) has been widely put in use recently. The manufacturing technology of the TFT-LCD industry mainly consists of array, cell, module processes, in which there exists special characteristics such as different objectives of individual process’s scheduling, complexity of manufacturing processes, and multi-s...

Production planning and control within modern manufacturing enterprises is a very complex process. The planning process encompasses decision making that spans from the macro level, such as market forecasting and master production scheduling, down to detail planning on the shop floor, such as the dispatching and sequencing of individual parts orders on a particular machining centre. This paper p...

This paper deals with constraint handling in manufacturing. It starts with a basic de nition of the constraint satisfaction problem, followed by a description of consistency enforcing and constraint guided search. Constraint handling in scheduling problems is the main topic of the paper also presenting di erent types of schedule construction methods and explaining the use of temporal constraint...

Heuristic evolutionary optimization algorithms are the solutions to many engineering optimization problems. Differential evolution (DE) is a real stochastic evolutionary parameter optimization in current use.DE does not require more control parameters compared to other evolutionary algorithms. Master Production Scheduling (MPS) is posed as one of multi objective parameter optimization problems ...