Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk

Bottleneck detection in manufacturing is the key to improving production efficiency and stability in order to improve capacity. Yet, common bottleneck detection methods in industry and academia lack either accuracy or practicability, or both, for dynamic systems. The new methodology is conducted by...

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Main Authors: Christoph Roser, Kai Lorentzen, Jochen Deuse
Format: Article
Language:English
Published: BVL 2015-10-01
Series:Logistics Research
Subjects:
Online Access:https://www.bvl.de/lore/all-volumes--issues/volume-8/issue-1/reliable-shop-floor-bottleneck-detection-for-flow-lines-through-process-and-inventory-observations-the-bottleneck-walk
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author Christoph Roser
Kai Lorentzen
Jochen Deuse
author_facet Christoph Roser
Kai Lorentzen
Jochen Deuse
author_sort Christoph Roser
collection DOAJ
description Bottleneck detection in manufacturing is the key to improving production efficiency and stability in order to improve capacity. Yet, common bottleneck detection methods in industry and academia lack either accuracy or practicability, or both, for dynamic systems. The new methodology is conducted by the observation of processes and inventories. Blocked processes and full inventories indicate a downstream bottleneck. Starved processes and empty inventories indicate an upstream bottleneck. Through subsequent observations of multiple process states and inventory levels within a system, it is possible to determine the direction of the bottleneck at the given time and hence to find the momentary bottleneck in the system. The shifting of bottlenecks can be observed directly. Work sampling techniques can be used to obtain a long-term picture of the dynamically shifting bottleneck. The new methodology does not require any calculations, statistics, or time measurements. Hence, the method is suited for practical use by shop floor supervisors and clerks. The direct observation of the bottleneck also gives additional information about the underlying causes of the bottlenecks, simplifying the improvement of the system capacity. Extensive field testing of the method received positive feedback not only from management but also from shop floor operators. The method is already in use at the Robert Bosch GmbH, where it is known as the bottleneck walk.
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spelling doaj.art-77092e3331074e928502be00f6969da32022-12-21T22:26:08ZengBVLLogistics Research1865-035X1865-03682015-10-01871910.1007/s12159-015-0127-2Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walkChristoph Roser0Kai Lorentzen1Jochen Deuse2Karlsruhe University of Applied Sciences, Karlsruhe, GermanyRobert Bosch GmbH, Stuttgart, GermanyTU Dortumung Technical University, Dortmund, GermanyBottleneck detection in manufacturing is the key to improving production efficiency and stability in order to improve capacity. Yet, common bottleneck detection methods in industry and academia lack either accuracy or practicability, or both, for dynamic systems. The new methodology is conducted by the observation of processes and inventories. Blocked processes and full inventories indicate a downstream bottleneck. Starved processes and empty inventories indicate an upstream bottleneck. Through subsequent observations of multiple process states and inventory levels within a system, it is possible to determine the direction of the bottleneck at the given time and hence to find the momentary bottleneck in the system. The shifting of bottlenecks can be observed directly. Work sampling techniques can be used to obtain a long-term picture of the dynamically shifting bottleneck. The new methodology does not require any calculations, statistics, or time measurements. Hence, the method is suited for practical use by shop floor supervisors and clerks. The direct observation of the bottleneck also gives additional information about the underlying causes of the bottlenecks, simplifying the improvement of the system capacity. Extensive field testing of the method received positive feedback not only from management but also from shop floor operators. The method is already in use at the Robert Bosch GmbH, where it is known as the bottleneck walk.https://www.bvl.de/lore/all-volumes--issues/volume-8/issue-1/reliable-shop-floor-bottleneck-detection-for-flow-lines-through-process-and-inventory-observations-the-bottleneck-walkBottleneck detectionShifting bottleneckTheory of constraintsVariability
spellingShingle Christoph Roser
Kai Lorentzen
Jochen Deuse
Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk
Logistics Research
Bottleneck detection
Shifting bottleneck
Theory of constraints
Variability
title Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk
title_full Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk
title_fullStr Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk
title_full_unstemmed Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk
title_short Reliable shop floor bottleneck detection for flow lines through process and inventory observations: the bottleneck walk
title_sort reliable shop floor bottleneck detection for flow lines through process and inventory observations the bottleneck walk
topic Bottleneck detection
Shifting bottleneck
Theory of constraints
Variability
url https://www.bvl.de/lore/all-volumes--issues/volume-8/issue-1/reliable-shop-floor-bottleneck-detection-for-flow-lines-through-process-and-inventory-observations-the-bottleneck-walk
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AT kailorentzen reliableshopfloorbottleneckdetectionforflowlinesthroughprocessandinventoryobservationsthebottleneckwalk
AT jochendeuse reliableshopfloorbottleneckdetectionforflowlinesthroughprocessandinventoryobservationsthebottleneckwalk