Diego Augusto de Jesus Pacheco, Isaac Pergher, José Antônio Valle Antunes Junior and Guilherme Luís Roehe Vaccaro
The purpose of this study is to compare different models integrating the TOC and Lean approaches.
Abstract
Purpose
The purpose of this study is to compare different models integrating the TOC and Lean approaches.
Design/methodology/approach
The models of reference were identified through a comprehensive literature review. A qualitative and comparative analysis was carried out by pointing out the strengths, weaknesses and gaps of models integrating the TOC and Lean based on the production system requirements.
Findings
The findings indicate that these models can be improved by introducing aspects related to the system structure such as main key performance indicators, type of shop layout and performance metrics to evaluate the improvements implemented in the production system. The results provided evidence that the TOC and Lean are complementary approaches, and the individual gaps of each approach seem to be, in the most part, offset by the virtues of the other.
Practical implications
This study enables decision makers and industrial managers to evaluate the practices adopted in the production environment, as well as the use of the different set of continuous improvement practices. This article also minimizes the literature gap regarding whether and how integrated Lean and TOC approach can be used in the firms.
Originality/value
This study contributes to the body of literature on Lean by comparing three different models integrating Lean and the TOC. Furthermore, a research agenda is suggested for future research aimed at developing new models integrating both approaches, aiming to increase the competitiveness of the production systems.
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Diego A. de J. Pacheco, Julie Hvid Borgvardt and Isaac Pergher
Recent geopolitical and economic tensions have caused instabilities in food supply chains (FSCs), affecting their performance and integration. These challenges have significantly…
Abstract
Purpose
Recent geopolitical and economic tensions have caused instabilities in food supply chains (FSCs), affecting their performance and integration. These challenges have significantly impacted the sales and operations planning (S&OP) processes of companies operating in global networks. However, there is a lack of clarity regarding effective strategies for enhancing S&OP processes in response to these supply chain challenges in different sectors. To address this gap, the purpose of this study is to develop and test an integrated maturity model that assists companies in this sector in assessing and improving their execution of S&OP processes in global supply chains.
Design/methodology/approach
Through a case study conducted in a multinational food company operating in a global supply chain in Europe, the results shed light on the role of S&OP maturity assessment in guiding focal companies into internal and supply chain decisions.
Findings
Findings suggest that the developed model has the potential to enhance the integration among actors in the FSC. Findings provide insights for developing supply chain solutions that align with the functions of the food industry and supply chain dynamism. The study offers actionable insights that address some limitations of the existing empirical literature, which has provided limited support for the role of S&OP activities in facilitating effective integration in FSCs.
Research limitations/implications
The study highlights qualitative benefits associated with S&OP implementation, enabling food industries to establish more realistic expectations regarding the outcomes of S&OP initiatives.
Practical implications
This study enhances the understanding of S&OP maturity phenomena in FSCs and provides practical insights for companies to manage the volatile conditions in this sector’s supply chains.
Originality/value
The paper makes a theoretical contribution by developing and testing an integrated model designed explicitly for FSCs, providing valuable guidance for decision-makers.
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Thyago Celso Cavalcante Nepomuceno, Miguel Gomes da Silva, Maria Eugênia Vergilio Mori, Wilka Maria do N. Silva and Isaac Pergher
The recent increase in the number of infections and mortality rates in many regions has emphasized the cyclical nature of this pandemic, with new variants emerging constantly…
Abstract
Purpose
The recent increase in the number of infections and mortality rates in many regions has emphasized the cyclical nature of this pandemic, with new variants emerging constantly. Understanding what has been done by efficient administrations to contain the outbreak is essential while new immunization developments for the new variants are not available.
Design/methodology/approach
This work adapts the traditional Banker, Charnes and Cooper (BCC) Variable Returns to Scale model for including panel data on the Brazilian Federal Government spending over the first pandemic months in Pernambuco to identify efficient municipalities and conduct a benchmark on the best practices, reactions and implications that can serve as a guide for the post-Covid recurrence era.
Findings
The results provide an interesting panorama of municipal response to the pandemic and some quantitative and qualitative prospects on potentials for improvements from the perspective of efficient and inefficient cities. Only one administration (São Bento do Una) was identified as efficient for the entire period. The authors’ benchmark and discussion are focused on this municipality.
Originality/value
The authors believe this work has two innovative components. The first is a robust and systematic methodology integrating the advances in testing convexity and returns to scale in the construction of a production frontier based on panel data. The second is a discussion on what drives efficiency (benchmarking of best practices) in addition to how to quantitatively attain such efficiency prospects. To the best of the authors’ knowledge, both methodological and empirical implications are original to the present manuscript.
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Diego Pacheco, Isaac Pergher, Guilherme Luís Roehe Vaccaro, Carlos Fernando Jung and Carla ten Caten
This paper aims to presents a conceptual comparative analysis of Lean manufacturing and Six Sigma, highlighting 18 critical aspects between such approaches and their respective…
Abstract
Purpose
This paper aims to presents a conceptual comparative analysis of Lean manufacturing and Six Sigma, highlighting 18 critical aspects between such approaches and their respective implications for management decision-making.
Design/methodology/approach
Qualitative approach based on the results obtained from literature review about Lean and Six Sigma.
Findings
The main points of divergence between Lean and Six Sigma have been highlighted based on 18 criteria. Seventeen criteria are proposed as a result of a review of the literature and one criterion, and “quality control”, is suggested by the authors.
Research limitations/implications
This article mitigates the literature gap regarding whether and how Lean and Six Sigma are synergistic approaches.
Practical implications
This study enables decision-makers to evaluate the Lean and Six Sigma practices. The results of the analysis performed originated three observations: first, both approaches are predominantly complementary; second, it is possible to create a single model integrating both approaches studied in this research; and third, when Lean is implemented as stand-alone approach, it falls short of specific tools to leverage its full potential according to the complexity of the problem under consideration.
Originality/value
This paper analyzes which aspects from Lean and Six Sigma can be learnt from organizational change and productivity improvement efforts. The analysis includes a comparison of 18 critical aspects for practical use of Lean and Six Sigma.