Search results

1 – 10 of 875
Article
Publication date: 25 May 2022

Chaochao Liu and Yang Zhang

Value stream mapping (VSM) is a visualization tool to identify and eliminate waste and widely applied in manufacturing, transportation, construction, service and other…

Abstract

Purpose

Value stream mapping (VSM) is a visualization tool to identify and eliminate waste and widely applied in manufacturing, transportation, construction, service and other industries, especially in the Industrial 4.0 technology era. The purpose of this paper is to review and analyze the VSM literature to identify the advances and hotspots of VSM literature.

Design/methodology/approach

Taking the VSM literature collected from the Web of Science Core Collection database as the research samples, this research used the bibliometric and keyword co-occurrence analysis to analyze the publication trend, research topics and their contents of VSM from concept integration, application sectors and technology expansion.

Findings

With the development of research, the latest research integrates conceptual integration, application departments and technology expansion to develop more complex research designs. It can be integrated with simulation, six sigma, big data, Internet of Things and other technologies to expand the analysis and design ability of VSM, which enhances the adaptability of VSM to various scenarios.

Originality/value

This research contributes to VSM literature by conducting a systematic review based on the citation structure within VSM research and identifies the established and emerging areas of research on VSM.

Details

International Journal of Lean Six Sigma, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2040-4166

Keywords

Article
Publication date: 21 April 2022

Narpat Ram Sangwa and Kuldip Singh Sangwan

This paper proposes an integrated value stream mapping (VSM) for a complex assembly line to improve the leanness of a complex automotive component manufacturing organization.

Abstract

Purpose

This paper proposes an integrated value stream mapping (VSM) for a complex assembly line to improve the leanness of a complex automotive component manufacturing organization.

Design/methodology/approach

This study depicts the application of VSM at the case organization, where top management is concerned about the challenges of higher cycle time and lower productivity. Gemba walks were conducted to establish the concept of “walk the flow, create the flow” along the assembly line. The multi-hierarchical cross-functional team developed the current value stream map to know the “as-is” state. Then, the team analysed the current VSM and proposed the future VSM for the “to-be” state.

Findings

The integrated VSM shows different processes and work cells, various wastes, non-value-added activities, cycle time, uptime and the material and information flows for both products of the assembly line on the same map. The integrated VSM reduced cycle time, non-value-added activities, work in process inventory and improved line efficiency and production per labour hour for both the products, simultaneously.

Research limitations/implications

The limitation of the study is that the study focussed only on the application of VSM for one complex assembly only. Future research may be conducted using the developed integrated VSM approach in other complex production environments.

Practical implications

Managers can identify and reduce system waste by incorporating the concept of integrated VSM in a complex production or assembly environment where two or more products are being manufactured/assembled with low similarity.

Originality/value

The application of VSM for assembly lines is highly challenging because of merging flows, a large number of child parts in the lines and assembly of more than one product on the same line.

Details

The TQM Journal, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1754-2731

Keywords

Open Access
Article
Publication date: 16 March 2022

Cristian Castillo

The purpose of this study is to identify the perception of workers before, during and after the implementation of changes derived from the lean manufacturing (LM…

Abstract

Purpose

The purpose of this study is to identify the perception of workers before, during and after the implementation of changes derived from the lean manufacturing (LM) technique called value stream mapping (VSM) analysis and the causes that lead to this perception.

Design/methodology/approach

A qualitative methodological research design was adopted, using individual transcribed and coded interviews as the primary method of data collection.

Findings

At the beginning of the VSM changes, this study found strong denial and resistance emotional responses from workers due to the uncertainty and stress generated. The main cause of this resistance was their lack of understanding of the VSM analysis process presenting technical concepts, due to their educational level and the lack of a pre-existing organisational culture oriented toward continuous improvement. However, in the last stage of change, it is found that the workers accepted the new improvement proposals without resignation, improving their productivity and work performance because they saw and understood the improvements as effective.

Practical implications

This study will enable those responsible for organisations to anticipate the negative reactions that may arise from the organisational changes stemming from the implementation of VSM improvements. In addition, it adds new knowledge bases to the literature on the emotional consequences for employees during LM changes through VSM.

Originality/value

This study provides a qualitative analysis of the perceived emotional impact on workers that participated in LM techniques, in this case, focused on VSM analysis. It is an exploratory study that serves as a foundation for future research in the quantitative field.

Details

Journal of Manufacturing Technology Management, vol. 33 no. 9
Type: Research Article
ISSN: 1741-038X

Keywords

Article
Publication date: 15 December 2021

Nahed T. Zeini

The aim of this study is to diagnose the Egyptian political system from the perspective of the viable system model (VSM). That in turn gives us significant insights on how…

Abstract

Purpose

The aim of this study is to diagnose the Egyptian political system from the perspective of the viable system model (VSM). That in turn gives us significant insights on how to improve the distribution and control of power in Egypt to warrant greater autonomy and representativeness in the branches of government.

Design/methodology/approach

The proposed diagnostic framework in this study was accomplished by applying the principles and aspects of Stafford Beer's VSM to the three state powers of Egypt: the executive, legislative and judiciary. In addition, it adopts the guidelines for applying the VSM described by both Stafford Beer and José Pérez Ríos.

Findings

The presented framework in this study shows a comprehensive explanation of the essential functions and their distribution among the entities of the Egyptian political system. In addition to that, the findings give us insights about the need for greater autonomy and self-organization among the political system's entities. Greater communication, consensus, cooperation and coordination is needed to achieve balance, regulate the interactions between them and to monitor each other without intervention. This, in turn, would ensure greater representation of citizen demands and expectations, and protect and guarantee their rights and freedoms.

Originality/value

The modeling of the Egyptian political system from a VSM perspective suggests the necessity of reform of the political system by a clear division of functions and tasks within the operational entities and subentities, decentralization of power structures and utilization of the decision marketing mechanism to reach public acceptance. The application of the VSM, for the sake of diagnosing and designing the viability of separation of power, can be considered as highly original.

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 17 September 2021

Hiluf Reda and Akshay Dvivedi

This research aims to improve the performance and productivity of low-level technology organizations using lean tools – value stream mapping (VSM). In order to investigate…

Abstract

Purpose

This research aims to improve the performance and productivity of low-level technology organizations using lean tools – value stream mapping (VSM). In order to investigate the application of VSM in low-level technology organizations, this study takes footwear manufacturing organizations as a case study.

Design/methodology/approach

Identifying a suitable organization was the first step for conducting the case study, followed by product family identification. Time and motion studies are used to determine the cycle time and identify the value-adding and non-value-adding activities, respectively. After making necessary observations and calculations, the current state map was developed. Different improvement proposals were identified, and the future state map was constructed.

Findings

As a result, 56.3% cycle time reduction and 69.7% reduction in lead time were obtained, confirming its application in low-level technology organizations to improve their performance and productivity. This promising result indicates that a significant improvement can be achieved if VSM is applied in low-level organizations other than footwear industries, such as the clothing and furniture industries. Speed is investigated to be one of the parameters in motion study.

Research limitations/implications

This study focuses on low-level technology organizations, specifically leather shoe manufacturing industries. But experiences gained from implementing this study are realistic and applicable in similar organizations.

Practical implications

Performance and productivity improvement are critical issues to be addressed in low-level technology organizations, especially in the leather footwear manufacturing sector. This can be achieved through VSM by identifying and removing the wastes. VSM can be applied to low-level organizations as well. VSM is a powerful tool that helps managers and practitioners in identifying wastes and opportunities for improvement.

Originality/value

The paper addresses applicability of VSM in the production process of low-level technology organizations with an original industrial case study in Ethiopia.

Details

International Journal of Productivity and Performance Management, vol. 71 no. 6
Type: Research Article
ISSN: 1741-0401

Keywords

Article
Publication date: 9 September 2021

Ernest Emeka Izogo and Mercy Mpinganjira

Marketer-generated value-laden social media digital content marketing (VSM-DCM) relates to content that is neither too “pushy” nor too “pully.” On the foundation of media…

Abstract

Purpose

Marketer-generated value-laden social media digital content marketing (VSM-DCM) relates to content that is neither too “pushy” nor too “pully.” On the foundation of media engagement, motivation- and attitude-based theories, this study rationalizes and investigates the mechanism that underlies the effect of VSM-DCM on electronic word-of-mouth (eWOM) intention.

Design/methodology/approach

The authors devised a 2 (product type: search vs. experience) × 3 (VSM-DCM: utilitarian vs. hedonic vs. utilitarian + hedonic) between-subject design (N = 360) after three pre-tests (N = 223).

Findings

The authors show that VSM-DCM formats are effective in enhancing brand attitude and eWOM intention for different products. Specifically, market-generated VSM-DCM that simultaneously embeds utilitarian and hedonic values is the most effective for optimizing brand attitude and eWOM intention in both search and experience product contexts. The effect of VSM-DCM formats on eWOM intention is mediated by brand attitude, while product type (search vs. experience) moderates this indirect effect.

Originality/value

This paper breaks new ground by highlighting the relevance of marketer-generated VSM-DCM in the DCM context and by illustrating the mechanism through which it leads to consumers’ intention to engage in eWOM. In so doing, it contributes to the debate on DCM implementation and the contextual factors that moderate the optimization of DCM outcomes.

Details

Journal of Research in Interactive Marketing, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2040-7122

Keywords

Article
Publication date: 26 July 2021

Vikash Gurugubelli and Arnab Ghosh

The share of renewable energy sources (RESs) in the power system is increasing day by day. The RESs are intermittent, therefore maintaining the grid stability and power…

Abstract

Purpose

The share of renewable energy sources (RESs) in the power system is increasing day by day. The RESs are intermittent, therefore maintaining the grid stability and power balance is very difficult. The purpose of this paper is to control the inverters in microgrid using different control strategies to maintain the system stability and power balance.

Design/methodology/approach

In this paper, different control strategies are implemented to the voltage source converter (VSC) to get the desired performance. The DQ control is a basic control strategy that is inherently present in the droop and virtual synchronous machine (VSM) control strategies. The droop and VSM control strategies are inspired by the conventional synchronous machine (SM). The main objective of this work is to design and implement the three aforementioned control strategies in microgrid.

Findings

The significant contributions of this work are: the detailed implementation of DQ control, droop control and VSM control strategies for VSC in both grid-connected mode and standalone mode is presented; the MATLAB/Simulink simulation results and comparative studies of the three aforementioned controllers are introduced first time in the proposed work; and the opal-RT digital real-time simulation results of the proposed VSM control show the superiority in transient response compared to the droop control strategy.

Research limitations/implications

In the power system, the power electronic-based power allowed by VSM is dominated by the conventional power which is generated from the traditional SM, and then the issues related to stability still need advance study. There are some differences between the SM and VSM characteristics, so the integration of VSM with the existing system still needs further study. Economical operation of VSM with hybrid storage is also one of the future scopes of this work.

Originality/value

The significant contributions of this work are: the detailed implementation of DQ control, droop control and VSM control strategies for VSC in both grid-connected mode and standalone mode is presented; the MATLAB/Simulink simulation results and comparative studies of the three aforementioned controllers are introduced first time in the proposed work; and the opal-RT digital real-time simulation results of the proposed VSM control show the superiority in transient response compared to the droop control strategy.

Details

World Journal of Engineering, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 7 December 2020

Hichem Aouag, Mohyiddine Soltani and Mohamed Djamel Mouss

This paper aims to investigate an integrated approach that aims at enhancing the application process of value stream mapping (VSM) method. It also proposes an extended VSM

Abstract

Purpose

This paper aims to investigate an integrated approach that aims at enhancing the application process of value stream mapping (VSM) method. It also proposes an extended VSM called Economic and Environmental VSM(E-EVSM). The proposed approach highlights the improvement of economic and environmental performances.

Design/methodology/approach

The proposed approach has studied the integration of VSM, fuzzy decision-making trial and evaluation laboratory (DEMATEL) and fuzzy quality function deployment (QFD) to improve the economic and environmental performances of manufacturing processes. The VSM method is used for data collection and manufacturing process assessment, whereas fuzzy DEMATEL is used to analyse the current state map. Finally, fuzzy QFD is used to organize the improvement phase of VSM method.

Findings

The clear findings of this research prove the effectiveness of VSM method on the environmental and economic performances of manufacturing processes. In addition, the proposed approach will show the advantages of fuzzy DEMATEL and fuzzy QFD approaches in improving the application of the VSM method.

Research limitations/implications

The limitation of this study includes the lack of consideration of other dimensions such as social, technological and managerial. In addition, the proposed approach studied an average set of environmental and economic indicators.

Originality/value

The novelty of the proposed approach is proved by the development of an extended VSM method (E-EVSM). Also, the proposed approach contributes by a new methodology for analysing and improving the current state map of manufacturing processes.

Article
Publication date: 27 January 2021

Tjaša Štrukelj, Dejana Zlatanović, Jelena Nikolić and Simona Sternad Zabukovšek

The consequences of human social irresponsibility urge socially responsible reactions. The authors expose the consequences of socially irresponsible behaviour and state…

Abstract

Purpose

The consequences of human social irresponsibility urge socially responsible reactions. The authors expose the consequences of socially irresponsible behaviour and state possible requisitely holistic tools to eliminate organisations’ dangerous and socially irresponsible behaviour. This paper aims to examine how the viable system model (the VSM) used as a diagnostic tool can help organisations support socially responsible behaviour.

Design/methodology/approach

Given the variety of systems methodologies, the authors selected the VSM as a key methodological tool of Organizational Cybernetics. A case-study approach is used to demonstrate the power of the VSM as a diagnostic tool.

Findings

Humans need to replace recklessness and selfishness by faster re-orientation towards a socially responsible society. By following the cybernetic circle of the preparation and implementation of the management process and practising social responsibility via the VSM, organisations can conduct socially responsible business operations for a socially responsible society. Respecting the pluralist nature of social responsibility and a limited framework of the VSM, the VSM analysis needs to be supported by interpretive systems approaches, such as Strategic Assumptions Surfacing and Testing (SAST).

Research limitations/implications

The presented study’s limitation is the case study of a selected organisation from Europe. The discussion could be relevant to each organisation, which is observed as a viable system. The insights gained with this case study can be broadened by empirical research involving diverse organisations from various countries.

Practical implications

Research results indicate socially irresponsible behaviours of the researched organisation and possible ways of overcoming them. The cybernetic circle of the preparation and implementation of socially responsible management processes through the VSM offers a possible path towards more social responsibility in organisations. Moreover, the VSM should be used in combination with interpretive systems approaches, such as SAST.

Social implications

The generality of the VSM indicates that decision-makers could use the VSM for diagnosing socially irresponsible behaviour in organisations and for redesigning organisations to help develop a more socially responsible society.

Originality/value

The paper contributes to a cybernetic framework and methodological support to social responsibility. This study could serve as an essential starting point for organisations wishing to take further steps towards social responsibility.

Article
Publication date: 25 November 2014

Sandra Hildbrand and Shamim Bodhanya

The purpose of this paper is to introduce the viable system model (VSM) as a valuable tool to the food industry. A sugarcane supply chain was used to evaluate VSM's…

Abstract

Purpose

The purpose of this paper is to introduce the viable system model (VSM) as a valuable tool to the food industry. A sugarcane supply chain was used to evaluate VSM's applicability to the food industry by exploring how VSM can help to understand its complexity.

Design/methodology/approach

VSM and qualitative research methods were combined in an interactive manner to produce a VSM diagnosis.

Findings

The VSM diagnosis highlighted that while continuity of the system is not at risk, many improvement opportunities exist. For example, the local mill management lacks autonomy, essential operational measurement cannot be realised, coordination is deficient and a vision or identity for the mill area and a joint effort to engage in strategic considerations is missing. Miller-grower fragmentation surfaced as one cause of these shortcomings.

Research limitations/implications

Although VSM revealed shortcomings, it was unable to facilitate interventions for improvement. VSM's capacity in dealing with shortcomings should be strengthened and the merit of VSM in other food-related supply systems should be investigated.

Practical implications

Millers and growers need to become genuine partners and work jointly on the issues that challenge the system to realise the full potential that is embedded in the system.

Originality/value

VSM has not been applied in the sugar industry context and the amount of researches that explore sugarcane supply chains holistically is limited.

Details

British Food Journal, vol. 116 no. 12
Type: Research Article
ISSN: 0007-070X

Keywords

1 – 10 of 875