Information and decision-making delays in MRP, KANBAN, and CONWIP
نویسندگان
چکیده
A production control system (PCS) can be considered an information-processing organization (IPO). The performance of different production control systems has been studied intensively. However, their decision-making efficiency has not drawn much attention. The amount of information in a production control system can lead to a delay in decision-making. This paper considers the effect of product position information on decision-making. We use information entropy to measure the amount of position information in products and find that there are different amounts of position information in MRP, KANBAN, and CONWIP. Then, we compare the decision-making time delay among the three production control systems across identical organizational structures for information processing. We conclude that the production control system with the smallest amount of information spends the least amount of time
منابع مشابه
Selection of Inventory Control Points in Multi-stage Pull Production Systems
................................................................................................................................................... 9 CHAPTER 1: INTRODUCTION .................................................................................................................. 11 1.1 BACKGROUND .............................................................................................
متن کاملRestricted work-in-process: A study of differences between Kanban and CONWIP
This article presents a simulation study over a small supply chain, where the amount of work-in-process (WIP) is restricted. The supply chain consists of five linked machines, or production facilities, with stochastic operation times. A number of test cases are made where the number of jobs in the machines and the buffer areas are restricted. The restrictions are designed both in the Kanban way...
متن کاملModeling and Analysis of Manufacturing Systems with Multiple-Loop Structures
Kanban and Constant Work-In-Process (CONWIP) control methods are designed to impose tight controls over inventory, while providing a satisfactory production rate. This paper generalizes systems with kanban or CONWIP control as assembly/disassembly networks with multiple-loop structures. We present a stochastic mathematical model which integrates the control information flows with material flows...
متن کاملA Performance Evaluation of KANBAN, CONWIP and Base-stock in Serial Production Lines
In managing a production process, choosing a proper card-based control mechanism is an important task to achieve the best performance. We present performance evaluation of the three well-known card-based production control mechanisms, KANBAN, CONWIP and Base-stock in serial production lines. We employ the theory of token transaction systems within a deterministic framework. The performance meas...
متن کاملComparing CONWIP, synchronized CONWIP, and Kanban in complex supply chains
Three types of JIT ordering systems used for supply chain management were quality tested, the Kanban, the original constant work-in-process (CONWIP), and a synchronized CONWIP. The synchronized CONWIP system is described for its ability to handle complicated supply chains, which consist of assembly stages with different lead times. In the system, orders for each process are released while adjus...
متن کامل