Integrating value stream mapping and discrete events simulation as decision making tools in operation management

Helleno, André Luís; Pimentel, César; Ferro, R; Santos, Péterson Felipe Arias; Oliveira, Maria Célia de; Simon, Alexandre Tadeu

doi:10.1007/s00170-015-7087-1

Cited by 37 publications

(14 citation statements)

References 17 publications

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“…İlk kez Toyota tarafından kullanılan DAH, israfın elimine edilmesi ve tedarik zinciri boyunca ürünlerin ve bilginin sürekli akışının sağlanabilmesi için tasarlanmıştır. Süreçlerin iyileştirilebilmesi için Toyota tarafından önerilen yaklaşım, iyileştirme için tekrarlanabilir bir prosesin tanımlanması, mevcut prosesteki israfı tanımlayan DAH'ın hazırlanması, israfın ortadan kaldırıldığı gelecek durumu gösteren DAH araçlarının uygulanması ve değişimin hayata geçirilmesi şeklinde özetlenebilir (Helleno, 2015(Helleno, : 1060.…”

Section: Değer Akış Haritalamaunclassified

LEAN APPLICATIONS WITH VALUE STREAM MAPPING METHOD: EXAMPLE OF TEXTILE SECTOR / Değer Akış Haritalama Yöntemi İle Yalın Uygulamalar: Tekstil Sektörü Örneği

Akin

2020

Uluslararası Ekonomi İşletme Ve Politika Dergisi

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Teknolojinin gelişmesi, nüfusun artması, yaşam standartlarının yükselmesi gibi sebeplere bağlı olarak günümüzde insan ihtiyaçları artmış ve çeşitlenmiştir. Artan ihtiyaçları karşılamak için kullanılan kaynaklar ise hızla tükenmektedir. Bu nedenle işletmeler üretim kaynaklarını mümkün olduğunca verimli kullanmalıdırlar. Ürüne maliyet yükleyerek kaynakları tüketen ancak müşteri için değer yaratmayan tüm faaliyetler israf olarak tanımlanmaktadır. Yalın yönetim araçlarından biri olan Değer Akış Haritalama (DAH) yöntemi, israfı, verimsizliği, katma değeri olmayan işlemleri ve süreçleri keşfetmek için kullanılan görsel bir tekniktir. DAH işletmelerin, üretim süreçlerindeki israfı net olarak görebilmelerine ve üretim süreçlerini iyileştirebilmek için potansiyel projeler geliştirmelerine olanak sağlar. DAH ile nihai hedef israfı ortadan kaldıran, tedarik süresini ve ürünün teslim zamanını azaltan, verimliliği ve kaliteyi artıran böylece tüm sistem akışını optimize eden yalın bir değer akışı tasarlamaktır. Bu çalışmada yalın düşünce prensipleri çerçevesinde üretim sürecindeki israf kaynaklarının belirlenmesi ve ortadan kaldırılması amacıyla, Kayseri'de faaliyet gösteren bir firmada yatak ürün ailesi için DAH uygulaması yapılmıştır. Çalışma kapsamında öncelikle mevcut durum haritası hazırlanmış ve israf kaynakları belirlenmiştir. Sonrasında israfı ortadan kaldırmaya yönelik gelecek durum haritası hazırlanmıştır. Uygulamalar sonucunda işletmede haftalık üretim miktarının yaklaşık olarak 150 adet artırılabileceği görülmüştür.

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Section: Değer Akış Haritalamaunclassified

LEAN APPLICATIONS WITH VALUE STREAM MAPPING METHOD: EXAMPLE OF TEXTILE SECTOR / Değer Akış Haritalama Yöntemi İle Yalın Uygulamalar: Tekstil Sektörü Örneği

Akin

2020

Uluslararası Ekonomi İşletme Ve Politika Dergisi

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“…However, there are key differences between the goals of value stream mapping and simulation, as the value stream map provides a static look into the current state, while simulation provides a dynamic view of the current state and an environment to test the future state through the use of stochastic variables. Therefore, to build a simulation model based on VSM, it is necessary to gather extra data to the ones provided by the VSM such as inter-arrival time and scheduling to define the Processes 2019, 7, 816 3 of 15 stochastic variables [20][21][22][23][24]. Ultimately, VSM and simulation provide a holistic look of the system, but VSM is an efficient tool to design a system and visualize it at a certain point in time, while simulation is an efficient tool to analyze the system in real-time and add the 4th dimension to the study, which takes time into perspective [23].…”

Section: Integrating Vsm and Simulationmentioning

confidence: 99%

“…Simulation of the VSM allows the team to try out the suggested improvements without causing any interruptions, and it enables the ideas to be tested with less cost and time. VSM and simulation are a natural combination, as each one enhances the other's value in bottleneck detection and making the production process leaner [3,23,28]. Usually, an accurate model of the current state is achieved through an iterative process to ultimately reach a verified model.…”

Section: Integration Of Vsm Toc and Simulationmentioning

confidence: 99%

Hybrid Integrations of Value Stream Mapping, Theory of Constraints and Simulation: Application to Wooden Furniture Industry

et al. 2019

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This paper studies manufacturing processes in a wooden furniture manufacturing company. The company suffers from long manufacturing lead times and an unbalanced production line. To identify sources of waste and delay value stream mapping (VSM) and a discrete event simulation model is implemented. VSM is used to visualize and analyze the major processes of the company and provide quantifiable KPIs; the manufacturing lead-time and then Overall Equipment Effectiveness (OEE) settings. A discrete event simulation model is then built to analyze the company on a wider scale and provide the data required to identify bottlenecks. Building on the data gathered from the production lines and the simulation model, two-bottleneck detection methods are used, the utilization method, and the waiting time method. Then based on the comparison of the two methods a third bottleneck detection is utilized; the scenario-based method, to identify the primary and secondary bottlenecks. After the bottlenecks are identified, changes are then evaluated using the simulation model and radar charts were built based on the improved simulation model, which evaluates the effect of changes in the utilization and OEE results. This work managed to neutralize the effect of one of the main bottlenecks and minimize the effect of the other. The manufacturing utilization was increased by 15.8% for the main bottleneck resources followed by 2.4% for the second one. However, it is hard to convince the traditional administration of this small size manufacturing plant to adopt a completely revolutionizing, costly, and risky (at such level) lean manufacturing approach. This paper studies and provides a much lower in cost and verified scheme of enhancement.

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“…Although usually associated with manufacturing processes, the practical relevance of VSM has been evidenced in several kinds of value stream, such as product development (Mascitelli, 2011), healthcare (Tortorella et al, 2017a), software development (Plenert, 2011), ergonomics (Jarebrant et al, 2016), administrative processes (Tapping and Shuker, 2003), sustainability (Faulkner and Badurdeen, 2014), wine sector (Jiménez et al, 2012), among others. Furthermore, VSM's versatility is also represented by its extensive integration with other methodological approaches, such as discrete events simulation (Helleno et al, 2015;Goienetxea Uriarte et al, 2020), six-sigma (Salah et al, 2010), Monte Carlo simulation (Souza et al, 2018), analytic hierarchy process (Tortorella et al, 2018), fuzzy quality function deployment (Mohanraj et al, 2015) and stochastic tools (Braglia et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Designing lean value streams in the fourth industrial revolution era: proposition of technology-integrated guidelines

Tortorella

Pradhan

Anda

et al. 2020

International Journal of Production Research

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Despite the envisioned interrelations, the way Industry 4.0 (I4.0) technologies can influence the design and implementation of lean value streams is still unknown and little empirical evidence is found in the literature. This article aims at proposing guidelines integrated with I4.0 technologies for designing lean value streams. We gathered experts' opinions regarding the relationship between guidelines for designing a lean value stream and I4.0 technologies. The identification of the most important relationships provided arguments for the proposition of enhanced guidelines for designing lean value streams within the Fourth Industrial Revolution context. The integration of I4.0 technologies into the guidelines for designing a lean value stream raises a distinct approach that benefits from the simplicity and efficiency of Lean Production with ease and agility of the technologies typical of the Fourth Industrial Revolution. Such technology-integrated guidelines may allow overcoming existing barriers while lead companies to superior performance results.

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Integrating value stream mapping and discrete events simulation as decision making tools in operation management

Cited by 37 publications

References 17 publications

LEAN APPLICATIONS WITH VALUE STREAM MAPPING METHOD: EXAMPLE OF TEXTILE SECTOR / Değer Akış Haritalama Yöntemi İle Yalın Uygulamalar: Tekstil Sektörü Örneği

LEAN APPLICATIONS WITH VALUE STREAM MAPPING METHOD: EXAMPLE OF TEXTILE SECTOR / Değer Akış Haritalama Yöntemi İle Yalın Uygulamalar: Tekstil Sektörü Örneği

Hybrid Integrations of Value Stream Mapping, Theory of Constraints and Simulation: Application to Wooden Furniture Industry

Designing lean value streams in the fourth industrial revolution era: proposition of technology-integrated guidelines

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