The workload control concept: theory and practical extensions of Load Oriented Order Release

Breithaupt, Jan-Wilhelm; Land, Martin; Nyhuis, Peter

doi:10.1080/0953728021000026230

Cited by 77 publications

(39 citation statements)

References 25 publications

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“…Wisner, 1995;Bergamaschi et al, 1997). Breithaupt et al (2002) reported that the order release mechanism of load-oriented manufacturing control (see Bechte, 1988) was previously included in the SAP R/2 system and the systems of some domestic ERP vendors in Germany. However, to the best of our knowledge, contemporary ERP systems do not contain this mechanism and no further information on this is available in the literature.…”

Section: Mto Requirements and Erp Functionality At The Order Release mentioning

confidence: 99%

The applicability and impact of Enterprise Resource Planning (ERP) systems: Results from a mixed method study on Make-To-Order (MTO) companies

Aslan

Stevenson

Hendry

2015

Computers in Industry

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The effect of a Make-To-Order (MTO) production strategy on the applicability and impact of Enterprise Resource Planning (ERP) systems is investigated through a mixed method approach comprised of an exploratory and explanatory survey followed by three case studies. Data on MakeTo-Stock (MTS) companies is also collected as a basis for comparison. The exploratory data demonstrates, for example, that MTO adopters of ERP found the system selection process more difficult than MTS adopters. Meanwhile, a key reason why some MTO companies have not adopted ERP is that it is perceived as unsuitable. The explanatory data is used to test a series of hypotheses on the fit between decision support requirements, ERP functionality, and company performance. In general, a poor fit between the decision support requirements of MTO companies and ERP functionality is identified, although certain modules can lead to performance improvements -most notably for Customer Enquiry Management (CEM). MTS companies make more use of planning tools within ERP systems, and it is concluded that production strategy is an important contextual factor affecting both applicability and impact. Follow-up cases with two MTO adopters and one MTO nonadopter develop a deeper understanding of the survey results. For example, in one adoption case, a system was rented to minimise the consequences of making a poor selection decision. Future research could explore how more MTO-specific planning concepts can be embedded within ERP systems to improve alignment.

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Section: Mto Requirements and Erp Functionality At The Order Release mentioning

confidence: 99%

The applicability and impact of Enterprise Resource Planning (ERP) systems: Results from a mixed method study on Make-To-Order (MTO) companies

Aslan

Stevenson

Hendry

2015

Computers in Industry

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“…While practical implementations showed significant reductions in TTT, simulation studies showed that applying constrained release leads to both shorter STT and longer TTT. However, Land and Gaalman [10], Breithaupt et al [1], and Land [11] have been able to show the existence of the work load balancing capability in specific types of workload control release mechanisms and its significant effect on system performance. They concluded that the design of the order release mechanisms of the traditional workload control systems is the real cause for not finding the workload balancing capability and proposed to use mechanisms based on work content instead of number of jobs.…”

Section: Introductionmentioning

confidence: 99%

Workload balancing capability of pull systems in MTO production

Germs

Riezebos

2009

International Journal of Production Research

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Pull systems focusing on throughput time control and applicable in situations with high variety and customization are scarce. This paper compares pull systems that can cope with such situations: POLCA and CONWIP. Both systems constrain the maximum amount of work in progress (WIP) within a loop, but their effectiveness in terms of reducing total throughput time is questioned. They mainly differ in the way routing variety in the shop is being handled. POLCA uses an authorization mechanism that uses route-specific capacity signals (POLCA cards). These signals level the maximum amount of WIP within a loop, where each loop connects two route segments. A CONWIP loop covers two or more operations. Several CONWIP loops can operate simultaneously, resulting in an m-CONWIP system with controlled release based on the actual progress of jobs on the shop floor. Theory states that an improvement of the average total throughput time will be due to the workload balancing capability of a release mechanism, but that many release mechanisms lack this capability. This paper shows this workload balancing capability to exist for POLCA and m-CONWIP, but not for CONWIP. The magnitude of the effect strongly differs, depending on the number of cards, utilization level, order arrival patterns and processing time variety of the orders.

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“…Silva e Morabito (2007) usam modelos de filas abertas para estimar inventário em processo e tempo de atravessamento em manufatura. O diagrama de resultado surge em obras ligadas à linha de pesquisa WLC (workload control -controle pela carga de trabalho), das quais se destacam Bechte (1994), Wiendahl e Breithaupt (2000) e Breithaupt et al (2002) e a obra de síntese Wiendahl (1995). O WLC controla a liberação de ordens para manufatura, mantendo o inventário abaixo de um limite que previna ociosidade, mas garanta fluxo rápido, pois o tempo de atravessamento resulta controlado.…”

Section: Este Artigo Apresenta Um Método Para a Medição De Inventáriounclassified

Medição do inventário em processo e tempo de atravessamento em manufatura por modelagem em redes de Petri e diagrama de resultados

Facchin

Sellitto

2008

Gest. Prod.

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Este artigo apresenta um método para a medição de inventário em processo e tempo de atravessamento em um sistema de manufatura. O método consiste em modelar a manufatura por redes de Petri, simular o modelo em computador, alimentando-o com a situação de carga inicial dos processos e com um plano de produção, obtendo os momentos simulados de conclusão de cada ordem do plano. Após este procedimento, com o uso do diagrama de resultados e da fórmula do funil, calcula-se o valor médio simulado de inventário em processo que o plano produzirá na manufatura. Ao fim, faz-se uma discussão na qual explora-se como os resultados do método podem ser úteis em decisões de gestão, envolvendo o inventário admitido, pulmões e restrições da manufatura.

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The workload control concept: theory and practical extensions of Load Oriented Order Release

Cited by 77 publications

References 25 publications

The applicability and impact of Enterprise Resource Planning (ERP) systems: Results from a mixed method study on Make-To-Order (MTO) companies

The applicability and impact of Enterprise Resource Planning (ERP) systems: Results from a mixed method study on Make-To-Order (MTO) companies

Workload balancing capability of pull systems in MTO production

Medição do inventário em processo e tempo de atravessamento em manufatura por modelagem em redes de Petri e diagrama de resultados

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