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Article
Publication date: 11 October 2018

Jose Dinis-Carvalho, Levi Guimaraes, Rui M. Sousa and Celina Pinto Leao

The purpose of this paper is to compare the well-known value stream mapping (VSM) with a recent tool named waste identification diagram (WID), regarding the capacity of…

Abstract

Purpose

The purpose of this paper is to compare the well-known value stream mapping (VSM) with a recent tool named waste identification diagram (WID), regarding the capacity of information representation and easiness of interpretation.

Design/methodology/approach

The work begins with a brief literature review comparing the main tools for representation of production units, with special emphasis on VSM and WID, in terms of ability to identify several types of waste. Then, the authors developed the VSM and the WID of a specific production unit and after that several groups composed by students of Industrial Engineering (IE) and/or professionals from industry were asked to analyse/interpret only one of these diagrams. Finally, a questionnaire with closed and open questions was applied to the groups to evaluate the analysed tool.

Findings

In general, the results revealed that WID is more effective than VSM and participants recognized that most of the WID elements are relevant. Specifically, a measure coined overall effectiveness was applied (based on the response time and percentage of correct interpretations), indicating a clear advantage of WID (22 per cent of correct interpretations per minute) compared to VSM (9 per cent of correct interpretations per minute). The main drawback pointed to the WID is the lack of representation of the information flow.

Originality/value

This work contributes to the IE field by revealing WID as a new promising graphical tool for representation of production units, especially in terms of identification/quantification of wastes. The tool was quantitative and qualitatively evaluated by persons both from academia and industry.

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Article
Publication date: 19 May 2020

Manuel Francisco Morales-Contreras, Manuel F. Suárez-Barraza and Marcelo Leporati

Identification and elimination of Muda (any activity adding cost but not value from the customers’ perspective) is one of the main objectives of Lean service. Whilst there…

Abstract

Purpose

Identification and elimination of Muda (any activity adding cost but not value from the customers’ perspective) is one of the main objectives of Lean service. Whilst there is significant research on implementing lean in manufacturing and some service industries, there is little information related to its application to the fast food service industry. The purpose of this paper is to try to fill in this gap by answering the research question: What type of Muda could be identified from the customers’ perspective within the service production processes in the fast food restaurant industry in Spain?

Design/methodology/approach

An exploratory case study has been conducted. Three multinational companies were selected and several sites observed in Madrid, Spain. Three methods were used to gather data: document analysis; direct and participative observation and semi-structured interviews.

Findings

The paper identifies the seven types of Muda: defects, movements, process, inventory, overproduction, transport and delay. The results are discussed for Cases A, B and C, showing that A and B present higher potential for Muda, compared C.

Practical implications

Threefold value for practitioners and managers: waste identification is an opportunity for non-efficient processes improvement; observation/analysis from the customers’ perspective reveals that customers perceive these inefficiencies; a guideline/audit tool for future assessments.

Originality/value

The paper contributes to the limited existing literature on lean service in fast food industry and disseminates this information to provide impetus, guidance and support toward increasing the productivity, efficiency, consistency and quality of service.

Details

International Journal of Quality and Service Sciences, vol. 12 no. 2
Type: Research Article
ISSN: 1756-669X

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Article
Publication date: 11 December 2019

Lisa M. Walters, Mark A. Nickerson and Linda A. Hall

The purpose of this paper is to investigate a subject accounting firm’s existing workflow processes for preparing individual tax returns with an emphasis on identifying…

Abstract

Purpose

The purpose of this paper is to investigate a subject accounting firm’s existing workflow processes for preparing individual tax returns with an emphasis on identifying predominant areas of waste.

Design/methodology/approach

Specific Quality and Lean tools were applied to qualitative data secured from on-site visits to the firm. Quantitative data analysis of productivity measures was performed to identify additional sources of muda (waste) as well as validate the findings from the qualitative analysis. Corrective actions were recommended as applicable.

Findings

This case study of the subject firm identifies predominant wastes in the individual tax return process as defects and waiting. The authors propose that these categories of waste (waiting and defect) may indeed be the predominant forms of waste in service organizations and require further research.

Research limitations/implications

At least two limitations exist. The first was the inability to capture exact cycle times for each of the process steps. A second limitation was that the data on staff performance were gathered via interview rather than through direct observation.

Practical implications

Individual income tax return preparation (Form 1040) provides a significant revenue stream for many accounting firms. Managing the processes involved in an effective and timely fashion is critical to profitability. Additionally, other service industries, including financial and accounting firms of similar size or function, may find these areas of waste relevant and adopt similar strategies for eliminating or reducing them in service-processes.

Originality/value

Negligible literature exists concerning wastes in accounting firms. However, accounting firms in the USA earn an average of more than 50 percent of their total fees from tax services, including income tax return preparation.

Details

The TQM Journal, vol. 32 no. 2
Type: Research Article
ISSN: 1754-2731

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Article
Publication date: 1 September 1999

Margaret P. Bates and Paul S. Phillips

In moving towards sustainable wastes management, the UK Government has adopted a wastes hierarchy. This hierarchy sets out clearly the priorities for sustainable resource…

Abstract

In moving towards sustainable wastes management, the UK Government has adopted a wastes hierarchy. This hierarchy sets out clearly the priorities for sustainable resource use and wastes management: it ought to be the guiding principle of private and public policy, with the emphasis placed strongly on reducing the amount of raw material used. The House of Commons Environment, Transport & Regional Affairs Committee has noted a pressing need to promote wastes minimisation within industrial and commercial sectors and has recommended the introduction of penalties and incentives to encourage industrial wastes minimisation. Despite this, in the food and retailing sector only around 25 per cent of companies were found to operate wastes minimisation programmes. This paper aims to demonstrate the benefits of wastes minimisation, in both financial and environmental terms, for the food and drink sector. Large multiprocess food and drink companies have found they can make annual savings of greater than one per cent of turnover by implementing wastes minimisation strategies.

Details

British Food Journal, vol. 101 no. 8
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 18 May 2020

Sid Ghosh and Kaitlin Lever

This research develops value stream mapping (VSM) for L'Oreal's artwork process, to eliminate waste, reduce lead time and identify stages that can be automated, which…

Abstract

Purpose

This research develops value stream mapping (VSM) for L'Oreal's artwork process, to eliminate waste, reduce lead time and identify stages that can be automated, which makes the process less prone to human error and more responsive to fulfilling business-to-business customer requirements. In addition, amendments frequently occur slowing down the artwork process. In this context, VSM is applied to L'Oreal's artwork process to reduce lead time, human error and missed deadlines.

Design/methodology/approach

This study uses data from L'Oreal's artwork tracker from 2018–2019, which is manually tracked by the launch team. The service level agreement and task time data have been collected from 12 employees representing the launch, factory and marketing teams working on the artwork process. Qualitative feedback was also obtained from nine employees to validate the VSM for L'Oreal's artwork process.

Findings

VSM identified stages that can be streamlined and automated in L'Oreal's artwork process, which makes the process more efficient and responsive to changing scope of the artworks. 50% of the stages have been eliminated from the manual artwork process, resulting in a reduced lead time of 10.5 days and a reduction of 28% spent on the process. This allows the artwork process to be more agile to the requirements of business-to-business customers. The proposed VSM shows a 73% increase in value-added time for a renovation and a 75% increase in value-added time for new product developments.

Originality/value

VSM has been specifically designed, developed and analyzed for L'Oreal's artwork process, in order to make the process more efficient and responsive to business-to-business customer’s requirements.

Details

Business Process Management Journal, vol. 26 no. 7
Type: Research Article
ISSN: 1463-7154

Keywords

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Article
Publication date: 30 September 2019

Aatish Kumar Mishra, Ayush Sharma, Moraldeepsingh Sachdeo and Jayakrishna K.

The main purpose of this paper is to analyze the current state of a bonnet-manufacturing industry and to optimize the process by designing a future state map using…

Abstract

Purpose

The main purpose of this paper is to analyze the current state of a bonnet-manufacturing industry and to optimize the process by designing a future state map using simulation approach.

Design/methodology/approach

The case study approach has been proposed to highlight the applicability of value stream mapping (VSM) in an Indian bonnet manufacturing organization. The methodology used relies on formulation of VSM being the main tool used to identify the opportunities for classifying and eliminating bottlenecks with the help of various lean techniques. A contrast of present and past scenarios is highlighted to underscore the importance of using VSM with ARENA simulation.

Findings

Application of the proposed simulation approach has helped the organization reduce the cycle time significantly by 30 per cent over the entire production time. The average number of work-in-progress pieces has also decreased by about ten. In addition, enhancements have been seen with respect to ecological parameters, e.g. carbon footprint has been reduced to 83.7 percent across the process.

Research limitations/implications

The proposed approach of using a simulation-based VSM helps in reducing the time involved in traditional VSM method. This approach is also easy to implement at any organizational level.

Practical implications

It is believed that this paper will aid not just industrialists but also academic professionals to appreciate the role of simulation using ARENA in helping them understand how to attack the various problems faced by industries. The results of the study indicate that by applying this methodology, there will be a reduction not only in cost but also in environmental impacts.

Originality/value

The paper incorporates a real case study, which shows application of VSM for implementing lean principles in a bonnet-manufacturing industry. Break-even analysis presented fills the gap which previous literatures have been missing.

Details

International Journal of Lean Six Sigma, vol. 11 no. 3
Type: Research Article
ISSN: 2040-4166

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Article
Publication date: 5 June 2017

Zakaria Dakhli, Zoubeir Lafhaj and Marc Bernard

While many procurement systems govern the construction sector, Design/Bid/Build is still prominent among the French building actors. The research applies Lean thinking…

Abstract

Purpose

While many procurement systems govern the construction sector, Design/Bid/Build is still prominent among the French building actors. The research applies Lean thinking (via a kaizen event) to the bidding phase of a building construction company to improve its bidding outputs.

Design/methodology/approach

The method used in this study is “Action-Research”. A two-month preparation phase was needed to prepare for the kaizen event. The results were based on an assessment conducted after 6 months of the kaizen event. Performance was measured following selected indicators related to ‘Time’, “Economical Impact”, “Quality” and “Sustainability”.

Findings

The Lean implementation had positive side-effects on the company’s organization and strategy as well.

Practical implications

The findings of this action-research project can be used to help researchers and practitioners assess the potential application of Lean in the bidding phase. It also provides insights into the importance of the cultural and existing practices for a successful Lean implementation.

Originality/value

A few research projects investigated the application of Lean thinking in bidding as it is considered as a wasteful process. However, waste can also be organized. The research proves that bidding can benefit from Lean thinking.

Details

International Journal of Lean Six Sigma, vol. 8 no. 2
Type: Research Article
ISSN: 2040-4166

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Article
Publication date: 8 May 2017

Nadia Awang Kalong and Maryati Yusof

The purpose of this paper is to discuss a systematic review on waste identification related to health information systems (HIS) in Lean transformation.

Abstract

Purpose

The purpose of this paper is to discuss a systematic review on waste identification related to health information systems (HIS) in Lean transformation.

Design/methodology/approach

A systematic review was conducted on 19 studies to evaluate Lean transformation and tools used to remove waste related to HIS in clinical settings.

Findings

Ten waste categories were identified, along with their relationships and applications of Lean tool types related to HIS. Different Lean tools were used at the early and final stages of Lean transformation; the tool selection depended on the waste characteristic. Nine studies reported a positive impact from Lean transformation in improving daily work processes. The selection of Lean tools should be made based on the timing, purpose and characteristics of waste to be removed.

Research limitations/implications

Overview of waste and its category within HIS and its analysis from socio-technical perspectives enabled the identification of its root cause in a holistic and rigorous manner.

Practical implications

Understanding waste types, their root cause and review of Lean tools could subsequently lead to the identification of mitigation approach to prevent future error occurrence.

Originality/value

Specific waste models for HIS settings are yet to be developed. Hence, the identification of the waste categories could guide future implementation of Lean transformations in HIS settings.

Details

International Journal of Health Care Quality Assurance, vol. 30 no. 4
Type: Research Article
ISSN: 0952-6862

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Article
Publication date: 2 October 2018

Cristina Toca Pérez and Dayana Costa

The purpose of this paper is to present a taxonomy of transportation waste in construction production processes based on lean construction (LC) principles.

Abstract

Purpose

The purpose of this paper is to present a taxonomy of transportation waste in construction production processes based on lean construction (LC) principles.

Design/methodology/approach

The research methodology used is case study and the main stages for the identification of the transportation waste in two construction projects were: mapping physical flows; measurement of transportation time; and monitoring of transportation waste events; assessment of the taxonomy.

Findings

The main contribution of this paper is the proposition of a taxonomy of transportation waste in construction production processes through the understanding of the transportation waste causes and consequences.

Research limitations/implications

Although the literature reviewed addresses sources from different parts of the world, the case studies performed are limited to one country, Brazil. However, the studies were carried out in two different construction sites separated by more than 3,000 km.

Practical implications

All data collected during the taxonomy application can be organized in order to develop an improvement plan. Moreover, if data collected is disseminated, there is the potential to increase the efficiency and effectiveness of the construction sector.

Social implications

Although the paper does not explore in depth the impact of the study on society or policy, the theme of waste minimization is focused on cost reduction, and one way to do that is through the flow management for waste minimization.

Originality/value

The paper discusses the concept of transportation waste of production in construction based on LC philosophy, through the understanding of its causes and consequences.

Details

Built Environment Project and Asset Management, vol. 8 no. 5
Type: Research Article
ISSN: 2044-124X

Keywords

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Book part
Publication date: 20 October 2015

Mohammad Shamsuddoha

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from…

Abstract

Contemporary literature reveals that, to date, the poultry livestock sector has not received sufficient research attention. This particular industry suffers from unstructured supply chain practices, lack of awareness of the implications of the sustainability concept and failure to recycle poultry wastes. The current research thus attempts to develop an integrated supply chain model in the context of poultry industry in Bangladesh. The study considers both sustainability and supply chain issues in order to incorporate them in the poultry supply chain. By placing the forward and reverse supply chains in a single framework, existing problems can be resolved to gain economic, social and environmental benefits, which will be more sustainable than the present practices.

The theoretical underpinning of this research is ‘sustainability’ and the ‘supply chain processes’ in order to examine possible improvements in the poultry production process along with waste management. The research adopts the positivist paradigm and ‘design science’ methods with the support of system dynamics (SD) and the case study methods. Initially, a mental model is developed followed by the causal loop diagram based on in-depth interviews, focus group discussions and observation techniques. The causal model helps to understand the linkages between the associated variables for each issue. Finally, the causal loop diagram is transformed into a stock and flow (quantitative) model, which is a prerequisite for SD-based simulation modelling. A decision support system (DSS) is then developed to analyse the complex decision-making process along the supply chains.

The findings reveal that integration of the supply chain can bring economic, social and environmental sustainability along with a structured production process. It is also observed that the poultry industry can apply the model outcomes in the real-life practices with minor adjustments. This present research has both theoretical and practical implications. The proposed model’s unique characteristics in mitigating the existing problems are supported by the sustainability and supply chain theories. As for practical implications, the poultry industry in Bangladesh can follow the proposed supply chain structure (as par the research model) and test various policies via simulation prior to its application. Positive outcomes of the simulation study may provide enough confidence to implement the desired changes within the industry and their supply chain networks.

Details

Sustaining Competitive Advantage Via Business Intelligence, Knowledge Management, and System Dynamics
Type: Book
ISBN: 978-1-78560-707-3

Keywords

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