Lean metric appraisement: exploration of grey numbers set theory

2014 ◽  
Vol 4 (3) ◽  
pp. 400-425 ◽  
Author(s):  
Chhabi Ram Matawale ◽  
Saurav Datta ◽  
Siba Sankar Mahapatra
Keyword(s):  
Lean Manufacturing ◽  
Design Methodology ◽  
Assessment System ◽  
Global Marketplace ◽  
Content Type ◽  
Production Practice ◽  
Manufacturing Sectors ◽  
Evaluation Module ◽  
Measurement Index System

Purpose – Lean manufacturing is a production practice that considers the expenditure of resources for any goal other than the creation of value for the end customer to be wasteful, and thus a target for elimination. In today's competitive global marketplace the concept of lean manufacturing has gained vital consciousness to all manufacturing sectors, their supply chains and hence a logical measurement index system is indeed required in implementing leanness in practice. The paper aims to discuss these issues. Design/methodology/approach – The present work exhibits an efficient grey-based leanness assessment system using concept of grey numbers theory. Findings – Such leanness estimation can help the enterprises to assess their existing leanness level; can compare different industries who are adapting this lean concept. The methodology described here has been found fruitful while applying for a particular industry, in India, as a case study. Originality/value – Lean extent evaluation module (lean index appraisement system) exploring grey numbers theory is quite new and not documented in literature before.

scholarly journals Managerial and Industry 4.0 solutions for fashion supply chains

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Marcello Braglia ◽  
Leonardo Marrazzini ◽  
Luca Padellini ◽  
Rinaldo Rinaldi
Keyword(s):  
Supply Chains ◽  
Lean Manufacturing ◽  
Industry 4.0 ◽  
Design Methodology ◽  
Industrial Case Study ◽  
Content Type ◽  
Enabling Technologies ◽  
Production Orders ◽  
Practical Implications

PurposeThe purpose of this paper is to present a structured framework whose objectives are to identify, analyse and eliminate fashion-luxury supply chains inefficiencies.Design/methodology/approachA Lean Manufacturing tool, the 5-Whys Analysis, has been used to find out the root causes associated with the problem identified from a data analysis of production orders of a fashion-luxury company. A case study, which explains the methodology and illustrates the capability of the tool, is provided.FindingsThis tool can be considered a suitable instrument to identify the causal factors of inefficiencies within luxury supply chains, suggesting potential countermeasures able to eliminate the problems previously highlighted. In addition, enabling technologies that deal with Industry 4.0 are associated with the root causes to enable further improvement of the supply chain.Practical implicationsThe effectiveness and practicality of the tool are illustrated using an industrial case study concerning an international Italian signature in the world of fashion-luxury footwear sector.Originality/valueThis framework provides practitioners with an operative tool useful to highlight where the major inefficiencies of fashion-luxury supply chains take place and, at the same time, individuates both the root causes of inefficiencies and the corresponding corrective actions, even considering Industry 4.0 enabling technologies.

scholarly journals Extending lean manufacturing in supply chains: a successful case in Brazil

2014 ◽  
Vol 21 (6) ◽  
pp. 1070-1083 ◽  
Author(s):  
Ana Beatriz Lopes de Sousa Jabbour ◽  
José Carlos Omodei Junior ◽  
Charbel José Chiappetta Jabbour
Keyword(s):  
Supply Chain ◽  
Six Sigma ◽  
Lean Manufacturing ◽  
Design Methodology ◽  
Lean Six Sigma ◽  
Success Story ◽  
Content Type ◽  
Focal Firm ◽  
Successful Case

Purpose – The purpose of this paper is to present the results of a success story involving the extending of lean manufacturing practices between a focal firm and its supplier, both located in Brazil, thereby configuring a case of excellence. Design/methodology/approach – An in-depth case study was conducted involving two companies: Company A, focal, leader in its segment, located in Brazil; and Company B, Company A's supplier, also located in Brazil. Findings – Results indicate there are several mechanisms for extending lean manufacturing practices in the supply chain, such as workshops, training, and integrated teams. These mechanisms are shown and guidelines are also introduced for companies seeking to successfully extend lean manufacturing practices. Originality/value – An original use of define, measure, analyze, improve, control for structuring the extending of lean manufacturing practices to suppliers and, consequently, the importance of the lean six-sigma relationship in this context. Furthermore, the guidelines introduced serve as a benchmark for other companies interested in the topic.

Assessment of a reconfigurable manufacturing system

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Durga Prasad ◽  
S.C. Jayswal
Keyword(s):  
Lean Manufacturing ◽  
Design Methodology ◽  
Manufacturing System ◽  
Product Family ◽  
Part Family ◽  
Content Type ◽  
Space Cost ◽  
Utilization Cost ◽  
Selection Of

Purpose The purpose of this paper is to develop the methodology which can facilitate the concept of reconfiguration in the manufacturing system. Design/methodology/approach Design methodology includes the calculation of similarity matrix, formation of part family, and selection of part family. ALC algorithm has been used for part family formation and three criteria have been considered for the selection of part family. These criteria are reconfiguration effort, under-utilization cost, and floor space cost. AHP has been used to calculate the weights of criteria and reference ideal method has been used for the selection of alternatives. Findings In the manufacturing system, machines should be grouped on the basis of reconfiguration cost. When the time period is less, light machines and Group 1 machines are added and removed. In the case study, the concept of reconfiguration is useful for families (A, B, C, D). Machines can be reused by adding/removing some modules of machines. The concept of reconfiguration becomes more useful when it is implemented with lean manufacturing. Lean manufacturing techniques Jidoka and Poka-yoke are used to increase the diagnosability of the system. Practical implications Industrial case study has been considered. Social implications Market competition is increasing rapidly and it increases the demand and variety of products, due to which manufacturing enterprises are forced to adapt a manufacturing system which can adjust its capacity and functionality quickly at low cost. To reconfigure manufacturing system from one product/product family to another product/product family, changes can be done in hardware and/or software components in response to sudden changes in the market or in regulatory requirements. Originality/value An integrated approach for reconfiguration has been proposed considering the industrial application. It includes weighted Jaccard function, ALCA, AHP, RIM. The methodology for calculation of reconfiguration effort, under-utilization cost, and floor space cost has been presented for industrial case.

Design of pull production control systems using axiomatic design principles

2019 ◽  
Vol 31 (3) ◽  
pp. 620-647
Author(s):  
Ozgur Kabadurmus ◽  
Mehmet Bulent Durmusoglu
Keyword(s):  
Lean Manufacturing ◽  
Design Methodology ◽  
Manufacturing System ◽  
Production Control ◽  
Real Life ◽  
Axiomatic Design ◽  
Content Type ◽  
Production Control System ◽  
Pull Production

Purpose The purpose of this paper is to contribute to the lean manufacturing literature by providing a roadmap for pull production control system (PCS) implementation. Design/methodology/approach Axiomatic Design (AD) methodology is used to develop the proposed pull PCS transformation roadmap. Findings The proposed design methodology is validated in a real-life manufacturing system. The results show that the proposed methodology significantly reduces the design efforts. The methodology effectively helps to choose the most appropriate pull PCS and determine its operational settings with respect to the manufacturing system characteristics. Research limitations/implications This study presents only one case study to test the proposed methodology. In future studies, the validity of the proposed method can be further generalized in different manufacturing sectors by real-life implementations. Practical implications In many real-life lean production projects, companies do not know where to start or how to proceed, which leads to repetitive design efforts and inefficient designs. The developed roadmap of this study minimizes incorrect or imperfect design trials and increases the success of pull production transformation projects. Originality/value The implementation of pull PCS requires extensive design knowledge and expertise. Therefore, many real-life applications fail due to costly and time-consuming trial-and-error-based design efforts. In the literature, there is no comprehensive guideline or roadmap for pull PCS implementation. To address this issue, this study provides a novel holistic roadmap to transform an existing push PCS to pull. The proposed methodology uses AD principles and combines fragmentary studies of the pull production literature.

Leanness estimation procedural hierarchy using interval-valued fuzzy sets (IVFS)

2014 ◽  
Vol 21 (2) ◽  
pp. 150-183 ◽  
Author(s):  
Chhabi Ram Matawale ◽  
Saurav Datta ◽  
Siba Sankar Mahapatra
Keyword(s):  
Decision Making ◽  
Index System ◽  
Lean Manufacturing ◽  
Fuzzy Numbers ◽  
Value Added ◽  
Assessment System ◽  
Global Marketplace ◽  
Content Type ◽  
Trapezoidal Fuzzy Numbers ◽  
Interval Valued

Purpose – Lean manufacturing is an operational strategy oriented toward achieving the shortest possible cycle time by eliminating waste. It is derived from the Toyota Production System and its key thrust is to increase the value-added work by eliminating waste and reducing incidental work. In today's competitive global marketplace, the concept of lean manufacturing has gained vital consciousness to all manufacturing sectors, their supply chains, and hence a logical measurement index system is indeed required in implementing leanness in practice. Such leanness estimation can help the enterprises to assess their existing leanness level and can compare different industries who are adapting this lean concept. The paper aims to discuss these issues. Design/methodology/approach – The present work exhibits an efficient fuzzy-based leanness assessment system using generalized interval-valued (IV) trapezoidal fuzzy numbers set. The concept of “degree of similarity” between two IV fuzzy numbers has been explored here to identify ill-performing areas towards lean achievement. Findings – The methodology described here has been found fruitful while applying for a particular industry, in India, as a case study. Apart from estimating overall lean performance metric, the model presented here can identify ill-performing areas towards lean achievement. Originality/value – The major contributions of this work have been summarized as follows: development and implementation of an efficient decision-making procedural hierarchy to support leanness extent evaluation. An overall lean performance index evaluation platform has been introduced. Concept of generalized IV trapezoidal fuzzy numbers has been efficiently explored to facilitate this decision-making. The appraisement index system has been extended with the capability to search ill-performing areas which require future progress.

Leanness metric evaluation platform in fuzzy context

2015 ◽  
Vol 10 (2) ◽  
pp. 238-267 ◽  
Author(s):  
Chhabi Ram Matawale ◽  
Saurav Datta ◽  
Siba Sankar Mahapatra
Keyword(s):  
Decision Making ◽  
Index System ◽  
Lean Manufacturing ◽  
Fuzzy Numbers ◽  
Assessment System ◽  
Global Marketplace ◽  
Content Type ◽  
Trapezoidal Fuzzy Numbers ◽  
Generalized Trapezoidal Fuzzy Numbers ◽  
Evaluation Platform

Purpose – The purpose of this study is to provide an efficient index system for evaluating leanness extent of the organizational supply chain. In today’s competitive global marketplace, the concept of lean manufacturing has gained vital consciousness to all manufacturing sectors, their supply chains and, hence, a logical measurement index system is indeed required in implementing leanness in practice. Such leanness estimation can help the enterprises to assess their existing leanness level and can compare different industries that are adapting this lean concept. Design/methodology/approach – The present work exhibits an efficient fuzzy-based leanness assessment system using trapezoidal fuzzy numbers set. Findings – The methodology described here has been found fruitful while applying for a particular industry, in India, as a case study. Apart from estimating overall lean performance metric, the model presented here can identify ill-performing areas toward lean achievement. Originality/value – The major contributions of this work have been summarized as follows: development and implementation of an efficient decision-making procedural hierarchy to support leanness extent evaluation; an overall lean performance index evaluation platform has been introduced; concept of generalized trapezoidal fuzzy numbers has been efficiently explored to facilitate this decision-making; and the appraisement index system has been extended with the capability to search ill-performing areas which require future progress.

Towards a taxonomy of intergenerational knowledge transfer practices

2018 ◽  
Vol 25 (2) ◽  
pp. 81-91
Author(s):  
Kerstin Kuyken ◽  
Mehran Ebrahimi ◽  
Anne-Laure Saives
Keyword(s):  
Knowledge Transfer ◽  
Comparative Study ◽  
Design Methodology ◽  
Qualitative Case Study ◽  
High Tech ◽  
Content Type ◽  
Case Study Design ◽  
Younger Workers ◽  
Intergenerational Knowledge

Purpose This paper aims to develop a better understanding of intergenerational knowledge transfer (IKT) practices by adopting a context-related and comparative perspective. Design/methodology/approach A qualitative case study design involving 83 interviews and non-participative observation in German and Quebec organizations has been chosen. Findings Two distinctive archetypes of IKT emerge from both national contexts: “we-individualizing” (Germany) and “I-connecting” (Quebec), leading to an eightfold taxonomy of IKT practices. Research limitations/implications This research is limited to young and senior workers and to high-tech sectors. Originality/value Comparative and inductive study of IKT, adaptation of IKT practices to national contexts, retaining younger workers. This inductive and comparative study allows a better adaptation of IKT practices to national contexts and therefore a better retention of younger workers.

Digital forensics and evolving cyber law: case of BIMSTEC countries

2019 ◽  
Vol 22 (4) ◽  
pp. 744-752
Author(s):  
Sisira Dharmasri Jayasekara ◽  
Iroshini Abeysekara
Keyword(s):  
Information Technology ◽  
Design Methodology ◽  
Digital Forensics ◽  
Content Type ◽  
Global Context ◽  
Study Approach ◽  
Legal Frameworks ◽  
Work Done

Purpose The purpose of this paper is to discuss the role of digital forensics in an evolving environment of cyber laws giving attention to Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC) countries, comprising Bangladesh, India, Myanmar, Sri Lanka, Thailand, Nepal and Bhutan, in a dynamic global context. Design/methodology/approach This study uses a case study approach to discuss the digital forensics and cyber laws of BIMSTEC countries. The objective of the study was expected to be achieved by referring to decided cases in different jurisdictions. Cyber laws of BIMSTEC countries were studied for the purpose of this study. Findings The analysis revealed that BIMSTEC countries are required to amend legislation to support the growth of information technology. Most of the legislation are 10-15 years old and have not been amended to resolve issues on cyber jurisdictions. Research limitations/implications This study was limited to the members of the BIMSTEC. Originality/value This paper is an original work done by the authors who have discussed the issues of conducting investigations with respect to digital crimes in a rapidly changing environment of information technology and deficient legal frameworks.

scholarly journals Exploring producers' motivations and challenges within a farmers' market

2020 ◽  
Vol 122 (7) ◽  
pp. 2089-2103
Author(s):  
Rosario Michel-Villarreal ◽  
Eliseo Luis Vilalta-Perdomo ◽  
Martin Hingley
Keyword(s):  
Design Methodology ◽  
Farmers Markets ◽  
Full Time ◽  
Structured Interviews ◽  
Farmers Market ◽  
Content Type ◽  
Food Supply Chains ◽  
Part Time ◽  
Short Food Supply Chains

PurposeThe purpose of this study is to explore food producers' motivations and challenges whilst participating in short food supply chains (SFSCs). This paper compares findings with previous literature and investigates the topic in the context of producers' motivations.Design/methodology/approachThe paper includes a literature review concerning producers' motivations to engage in SFSCs. A case study was designed to investigate motivations underlying producers' engagement in SFSCs, as well as the challenges that they face. Semi-structured interviews were conducted in a farmers' market located in Mexico. Thematic analysis is used to identify the principal issues for producers'. Propositions based on findings are presented.FindingsFindings suggest that small, large, part-time and full-time producers are willing to engage with farmers' markets for diverse primary economic and non-economic motivations. Individual and collective challenges were also identified.Originality/valueThis research helps to explain producers' motivations and challenges within SFSCs in an under-researched context, namely a focus on producers' and in the Global South.

Is culture change a fad? Driving business results at Penna, ten years on

2014 ◽  
Vol 13 (3) ◽  
pp. 123-126
Author(s):  
Bev White ◽  
Gary Browning ◽  
Javier Bajer
Keyword(s):  
Culture Change ◽  
Design Methodology ◽  
Organizational Context ◽  
Longitudinal Case Study ◽  
Content Type ◽  
Business Results ◽  
Sustainable Culture ◽  
Systemic Interventions ◽  
Successful Business

Purpose – Ten years ago Penna, the global HR services group, needed a radical business and culture re-invention if it was to survive. This article aims to tell the story behind Penna's journey and describe how a sustainable culture change intervention became the cornerstone of a successful business. Design/methodology/approach – This case study is the result of an initial ethnographical research followed by concrete and systemic interventions. Findings – The case study identifies four elements that sustained the business impact of a culture change program over a significant period of time. Originality/value – This longitudinal case study follows a culture change program in an organizational context over a period of ten years.

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