Lean transformation in the pure service environment: the case of the call service centre

Development of an improvement framework for warehouse processes using lean six sigma (DMAIC) approach. A case of third party logistics (3PL) services

This study aims at developing an improvement framework of warehouse processes by improving process cycle efficiency using lean six sigma (DMAIC) approach. A case study method was used to illustrate the evaluation of the existing processes in the warehouse of a third party logistics company with a focus on productivity using warehouse lean tools. Data were collected based on warehouse operational areas of suppliers, customers and internally related with a focus on warehouse core processes. The optimization of the warehouse processes was based on established lean tools. Based on the warehouse evaluation, high non-value added activities were observed leading to a low process cycle efficiency of 40%. After the implementation of the lean six sigma approach, the process cycle efficiency improved of up to 70%. An improvement framework was also established for productivity across the warehouse processes to minimise waste. Lean warehousing has been used to illustrate solutions to a real-time problem of productivity which has negatively impacted on management and customer satisfaction. The study has added to lean warehousing focusing on all the warehouse processes using six sigma DMAIC approach, unlike most literature which concentrates on a specific process. Also develop a framework for the improvement of the processes.

Lean service: a contingency perspective

Many firms launch consolidated lean initiatives across all their service units, but because services differ, mandated lean practices may have a poor fit with the receiving unit. Whereas plenty of research has investigated the fit of lean implementation at the service industry level, this is the first to delineate how standard lean service practices fit different service types. Taking a contingency theory perspective, we study a leading European utility company comprising distinct service types. Using purposeful sampling, we interview 36 employees from 15 different teams representing three different service types – professional services, service factories and service shops – and 11 employees from the headquarters who are supporting these units in their lean transformation journeys. We also collect secondary data, including lean programme documentation and audit data. We find that one size does not fit all for lean service; there are important nuances to the relevance of standard lean service practices across different service types. Ten propositions are put forward suggesting how standard lean practices need to be adapted to fit the context of different service types. The findings reject the idea that all service units can progress along the same trajectory in lean service programmes. This paper informs managers how lean service programmes can be tailored to increase the fit with different service types.

Lean and its impact on sustainability performance in service companies: results from a pilot study

Purpose

The purpose of this empirical research is to understand the application of Lean practices (technical and social) and tools in the service sector, whose implementation is less studied, despite its economic relevance. The study aims to extend previous studies that focused on the relationship between Lean and operational and financial performance, and analyzing the impact on sustainability, encompassing economic, social and environmental perspectives.

Design/methodology/approach

A pilot survey was conducted with Lean experts in European service companies. The authors have utilized various professional contacts on LinkedIn and a satisfactory response rate was obtained for analysis.

Findings

The results of the study showed that there are several motivating factors for the implementation of Lean, the highlights being improving customer satisfaction, efficiency, delivery and cost reduction. The most frequently used Lean tools are related to the identification of improvement opportunities and causes of problems. The pilot survey also made it possible to identify the greater use of technical practices than social practices. The sustainability performance analysis showed that the better performance of service companies is in the economic dimension.

Originality/value

The authors have identified no empirical studies linking Lean and sustainable performance in the service sector. This study bridges this cognitive gap through a pilot study and therefore makes an original contribution to the current literature.

A Software Development Life Cycle Case Study Of Lean IT With Value Stream Mapping Analysis

Value Stream Mapping (VSM) is a useful tool for depicting the flow of materials and information in manufacturing and service processes. It is known as one of the most popular lean methods to identify bottlenecks, reduce cycle time, and improve current processes. Although VSM has been extensively used in manufacturing, there are limited studies that applied VSM in non-manufacturing environments. In this study, we present an application of VSM to improve Software Development Life Cycle (SDLC) process in an IT firm. The current process flows (as-is) are mapped to identify non-value-added activities as well as areas for improvement. Based on the analysis of the current state map, we propose recommendations, action plans, and a future state map (to-be-process). We estimate that, with the new process changes, IT project delivery time can be reduced from 210.5 days to 137.5 days – a 34.7% reduction in the software development life cycle process. This provides a powerful base for IT project management and enables the IT department to meet its expected project turnaround time.

Exploring the process of management system implementation: a case of Six Sigma

Purpose

The purpose of this study is to discover the learning mechanisms and temporal dynamics of implementing systems (Six Sigma) as it unfolds over time.

Design/methodology/approach

The data come from a European engineering company that was implementing a Six Sigma-based quality management system (QMS) over a seven-year period. The analysis is based on an event-sequence reconstruction of the implementation process as it unfolded over time and discovers four different learning mechanisms that emerged: programmatic, persistent, adaptive and dialectical learning mechanisms. The research follows a process design study, where the authors study how the process unfolds over time.

Findings

Much of the literature on implementing management systems suggests that implementation follows a prescribed sequence of “turn-key” steps. However, the findings show that only 40% of all events were driven by prescribed “turn-key” generic practices, while 56% of events required constructing new practices via adaptive and dialectical learning. Moreover, the implementation process did not proceed in a linear programmatic fashion, but instead followed a punctuated equilibrium pattern, which alternated between periods of incremental change and major organizational change. The study also found that implementation required changing many complementary organizational structures and practices that were interdependent with the management system (i.e. Six Sigma). By understanding the implementation process, managers can better assess the time and effort involved, better adapt the system to their situated context and predict critical junctures where implementation could break down.

Originality/value

This research complements the few studies that have examined the process of implementing management systems. Most studies examine factors or conditions that result in implementation success (the what of implementing systems), but few examine the process of implementation and the learning that takes place during implementation (the how of implementing systems), which is a complex nonlinear process that involves different modes of learning.

How Does Employee Infusion Use of CRM Systems Drive Customer Satisfaction? Mechanism Differences Between Face-to-Face and Virtual Channels

To attain customer satisfaction, service firms invest significant resources to implement customer relationship management (CRM) systems to support internal customer service (CS) employees who provide service to external customers in both face-to-face and virtual channels. How CS employees apply sophisticated CRM systems to interact with customers and how the mechanisms through which their CRM usage affects customer satisfaction vary across service channels and bear important implications. We approach these issues by investigating the concept of infusion use, defined as CS employees’ assessment of the extent to which they use a CRM system to its fullest potential to best support their work in the CRM-enabled service interaction context. Drawing on the IS success framework and expectation confirmation theory, we first formulate a baseline model that explains the direct and indirect mechanisms through which CS employees’ infusion use of CRM systems leads to customers’ expectation confirmation, which in turn affects customers’ satisfaction. We then draw on the lenses of media richness and communication adaptation to theorize why these two mechanisms exert differential influence in face-to-face and virtual channels. We test the hypotheses by collecting multiwave data from CS employees, customers, and firm archives of a Fortune 500 telecom service firm. We find that (1) CS employee infusion use can directly contribute to customer expectation confirmation and indirectly do so through CS employees’ satisfaction with the system (i.e., user satisfaction), and (2) the direct mechanism plays a more critical role in the face-to-face channel, whereas the indirect mechanism is more important in the virtual channel. Our findings inform managers of the avenues through which employees’ infusion use promotes CRM-enabled service success across face-to-face and virtual service channels.

Impact of lean service, workplace environment, and social practices on the operational performance of India post service industry

This paper aims to study the determinants of the Lean Service System (LSS) on the Operational Performance (OP) of India's mail service in the National Sorting Hub (NSH), Mangaluru, Karnataka, the southern part of India. Measuring the OP in mail service is a big challenge in the postal service industry. Hence, we have conducted a survey, and 150 usable data has measured the impact of Lean Service Practices (LSP), Lean Workplace Environment Practices (LWEP), and Lean Social Practices (LSoP) on the OP. The results are analyzed from the partial least square based structural equation modelling (PLS-SEM) with the support of R programming. The analysis shows that there is positive and significant impact of LSP (β = 0.380, p < .05), followed by LWEP (β = 0.281, p < .05), and LSoP (β = 0.266, p < .05) on OP. The practical effect of the findings of LSS are effectively implemented for enhancing the OP of the business. This research addresses the appropriate empirical model to test LSS in India's postal service industry, which is scant in the existing literature. Moreover, this study helps India Post to review its policy so as to sustain the effectiveness of Lean Service (LS) implementation.

Using efficiency frontier to inform operational decision-making

Abstract

In this study, we introduce Efficiency Frontier, an economic assessment framework for business operations. The proposed framework emphasizes efficiency and sustainability. It aims to help organizations translate a complex metric system into a value index, conduct performance evaluation, and determine efficient resource planning strategies. Unlike the traditional methods that majorly focus on the achievement of performance targets, the proposed framework also accounts for the amount of resource that is invested in the achievement, which encourages managers to implement sustainable strategies that aim for long-term success. To validate the new framework, we systematically study the case of the City of Chicago’s 311 contact center with a base case analysis and a sensitivity analysis. In the base case, an Efficiency Frontier architected by a set of efficient solutions from 2013 to 2016 is used to identify outperforming scenarios given resource constraints. In the sensitivity analysis, we demonstrate the application of Efficiency Frontier in determining optimal resource planning strategies in conservative, moderate, and aggressive business investment scenarios. The base case Efficiency Frontier reveals that the marginal return on investment in improving the performance may diminish as investment increases. The sensitivity study suggests that optimal resource planning strategies should be adjusted according to value propositions. This work builds a framework for business leaders to economically assess their operational decision-making.

Article highlights

Identifying Muda in a fast food service process in Spain

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.

Investigating the relationship between Lean Six Sigma's intangible impacts and organisational innovation climate factors

Purpose

This paper aims to investigate the relationship between the intangible impacts of Lean Six Sigma (LSS) and organisational innovation climate factors and proposes a conceptual model to link them. This paper ultimately aims to extend the range of LSS application by proposing LSS as a tool for fostering organisational innovation.

Design/methodology/approach

The paper followed a qualitative research approach to identify, analyse and categorize the intangible impacts of LSS by reviewing previous literature on its application and conducting in-depth interviews with its experts. Then, a detailed description of organisational innovation climate was provided to highlight its main factors. Finally, a conceptual model was developed to illustrate the relationships among the collected information.

Findings

LSS was found to have many intangible impacts categorized as organisational or individual related. Organisational innovation climate is determined by a number of factors that were found to be positively influenced by many of LSS's intangible impacts. Thus, a number of propositions between LSS's intangible impacts and organisational innovation climate factors were proposed, as illustrated by a conceptual model.

Originality/value

Studying the relationship between LSS and innovation by considering LSS's intangible impacts and linking them to organisational innovation climate factors is a relatively new approach that makes the contribution of this research valuable and significant to academics and professionals.

Lean thinking for education: development and validation of an instrument

Purpose

The purpose of this paper is to respond to the increasing demands that education currently faces and develop a structured approach for the implementation of lean thinking (LT) in primary and secondary education (P&SE) and empirically validated it.

Design/methodology/approach

An extended literature review was conducted of studies on LT in education, service and manufacturing, in which a preliminary list was formed of LT dimensions, which were subsequently reviewed by a focus group. An instrument was generated, which was distributed to 1,400 education professionals, and 394 replies were received. The measures were tested for validity and reliability. After the first round of analyses, measures were tested further to strengthen the proposed instrument.

Findings

The findings confirmed that the instrument developed is both valid and reliable and that the proposed measures consist actual dimensions of LT in P&SE. A number of success factors that would be required for LT initiatives to be implemented effectively within the P&SE context in a holistic perspective were revealed.

Practical implications

Although a number of studies have been developed on LT in the manufacturing or service sector, its implementation in education and particularly in P&SE remains scant. The instrument developed provides sufficient knowledge of which are the most important dimensions to consider when pondering LT in education.

Originality/value

While LT has been the subject of previous research in education, this study represented the first look at lean in P&SE and was the first of its kind to develop and validate in a real environment a lean implementation instrument for use in educational institutions. Researchers and practitioners can use the proposed instrument to build models of facilitating practices to improve performance while contributing to economic growth and enhancing social empowerment.

Examining operational wastes within Greek banking operations

Purpose

In order to address operational effectiveness in the banking sector caused by the 2008 global economic crisis, the purpose of this paper is to examine the nature of operational wastes that exist within four large Greek banks.

Design/methodology/approach

A Delphi study was undertaken with ten managers and ten employees.

Findings

The waste of underutilised people is found to be the dominant form of waste present and affecting the efficiency of banking operations, and managers and employees consider the waste of underutilised people as having a significant influence on the efficiency of the banking sector.

Practical implications

This has implications for managers of banking operations needing to address efficiencies in an increasingly competitive global economic environment. The paper also highlights the drawbacks of analysing typologies of waste across organisations and industrial sectors.

Originality/value

While some studies have examined the overall efficiency banking sector, to date, none has explored the nature of the inefficiencies that manifest as waste.

Quantifying and ranking the “7-Deadly” Wastes in a warehouse environment

Purpose

This paper focuses on quantifying and ranking the “7-Deadly” Wastes in the warehouse environment. The purpose of this paper is to develop a prioritized road map that would guide the implementation of the “7-Deadly” Wastes and their related waste-reduction practices in a warehouse environment for improving warehouse operational performance.

Design/methodology/approach

A four-stage approach was used to achieve the objectives of the study. A Delphi technique was employed to develop indicators of waste-reduction practices at the warehouse activities level and categorize them according to the “7-Deadly” wastes. Whereas categories ranked based on statistical analysis, a regression analysis was used to explore the impacts of this ranking.

Findings

The results of the regression analysis showed a significant influence of the ranked “7-Deadly” wastes on warehouse operational performance. The paper develops a road map for implementing waste-reduction practices in the warehouse.

Originality/value

The paper proposes a road map comprising warehouse waste categories. It develops an integrated approach to quantify, rank and prioritize initiatives to adopt the categories of the “7-Deadly” Wastes that would (not) affect warehouse operational performance.

Toyota Kata as a KM solution to the inhibitors of implementing lean service in service companies

Purpose

This paper aims to resolve the inhibitors of lean service using knowledge management (KM) concepts through the use of Toyota Kata. To achieve this, the authors updated the research on lean supportive practices and inhibitors of lean technical practices presented by Hadid and Afshin Mansouri (2014) through a systematic literature review (SLR). The SLR focused on empirical studies/cases from the past 15 years and confirmed the inhibitors of lean technical practices. As a result, Toyota Kata is proposed as a KM solution to the inhibitors of lean service implementation in service companies.

Design/methodology/approach

The authors carried out an SLR to identify inhibitors of lean service in real case applications and analyzed the resulting bibliographic portfolio using KM as a lens, along with three theories: universal theory, socio-technical systems theory and contingency theory, which assist in highlighting and clarifying the potential impact of using Toyota Kata as a solution to the inhibitors of lean technical practices.

Findings

When the authors analyzed the inhibitors of lean technical practices, they discovered that there is a strong relationship between the inhibitors and the individual (staff) personal characteristics regarding commitment, involvement, communication and preparation. These inhibitors and characteristics should work as a system, and Toyota Kata improves people’s skills and process performance by connecting people, processes and technology. Also, the authors noted that the Toyota Kata concept used can provide benefits in the implementation of lean service for companies, such as the internalization of continuous improvement, this becoming part of the company culture. Moreover, it has been demonstrated that Toyota Kata provides an effective way to achieve KM.

Research limitations/implications

This study may not have enabled a complete coverage of all existing peer-reviewed articles in the field of practices and inhibitors presented by Hadid and Afshin Mansouri (2014). However, it seems reasonable to assume that in this review, a large proportion of the studies available was included.

Practical implications

This paper opens a new perspective on the use of Toyota Kata by managers as a solution to implement KM, spinning the spiral of knowledge.

Originality/value

This is the first study that seeks empirical evidence of inhibitors of lean technical practices and proposes Toyota Kata as a KM Solution for these issues. As a result, this study advances the facility to overcome these inhibitors, opening a new perspective for management to lead in achieving operational excellence.

Can continuous improvement lead to satisfied customers? Evidence from the services industry

Purpose

To achieve higher customer satisfaction (CS), companies implement continuous improvement (CI) programs, regardless of the growing evidence of their failure to achieve declared goals. The purpose of this paper is twofold: first, to identify whether companies are able to improve CS through the application of CI; and, second, to identify what organizational practices are able to facilitate the impact of CI on CS.

Design/methodology/approach

To test the developed assumptions, the study uses the structural equation modeling technique. The data for analysis were collected from 304 service companies via a custom web-survey.

Findings

The research confirms the direct positive impact of CI on CS. Further, the study demonstrates that management commitment and rewards system that encourages employees to participate in CI play the major facilitating role in improving CS through CI. These practices accompanied by quality-oriented culture and employee training in the improvement tools provide necessary infrastructure to sustain CI in the companies over time. Additionally, regardless of the vital role of goal setting for CI established in previous research, the proposed study finds a limited ability of goal setting, as compared to other organizational practices, to facilitate CI–CS relationship.

Originality/value

The study contributes to the scarce field of research on CI implementation in the services environment. Further, the research assesses CS as a variable of interest, as opposite to the previous studies, considering CS as a part of the composite variable. The research assesses the impact of the training in CI methodology on the CI–CS relationship, while previous research focuses on the general, work-related training. The findings provide an important basis for further academic work in the area of quality management. The identified practices can serve as guidance for managers, implementing CI in their companies due to the high fit of the proposed model.

An empirical investigation of workplace factors affecting lean performance

Purpose

The purpose of this paper is to identify workplace factors with an impact on lean performance (LP). This can lead to better LP outcomes, thus facilitating organizations to smoothly move from the conventional to lean management.

Design/methodology/approach

The direct effects of training, knowledge acquisition and organizational culture are empirically investigated using data from 126 managers employed at a global company, which recently has improved its LP. Study’s hypotheses were analyzed with hierarchical regression models.

Findings

The findings suggest that not all of the aforementioned workplace factors holistically affect LP. Only organizational culture is associated to the four LP variables (i.e. continuous improvement, waste, ergonomy and product quality). Training and knowledge acquisition offer partially effects on LP with training to contribute mostly to predicting continuous improvements. Knowledge acquisition alone, has significant yet negative impact on both continuous improvement and ergonomy. Even more, when training is combined with knowledge acquisition the results are different.

Originality/value

As this study highlights the impact of workplace practices on LP, attributes mainly importance to the distinct effects that each of the aforementioned factors has on the four distinct LP variables. Although the study results reflect a particular case, its recommendations could facilitate practitioners to achieve better lean outcomes.

Strategic lean actions for sustainable competitive advantage

Purpose

The purpose of this paper is to add to the quality management body of knowledge by solidifying the connection between operational and strategic aspects of lean transformation. Previous research has examined these issues in isolation, demonstrating mixed results in financial and operational efficiencies. The authors show that when operational and strategic changes are jointly considered the likelihood of success for lean transformation increases.

Design/methodology/approach

The authors provide a literature review of 109 peer-reviewed papers on lean manufacturing and qualitative analysis of 23 Baldrige award winners (2000-2014) that implemented lean to assess the importance of strategic actions in achieving a sustainable competitive advantage through lean transformation.

Findings

The authors find that lean transformation yields mixed results unless strategic actions are taken by senior management. These strategic actions include but are not limited to knowledge management, human resources, and business growth and can result in performance heterogeneity by improving the output/input ratio of the firm. This performance can then manifest as either doing the same level of business with fewer resources (a profit play) or doing more business with the same resources (a growth play). As specific examples, the authors analyzed Baldrige award winners for evidence of lean strategic action to drive performance gains. The authors suggest further model validation through directed interview and/or survey research.

Originality/value

This paper clarifies the need for jointly implementing lean tools with strategic actions. The findings provide more deliberate strategic actions for organizations wishing to increase the likelihood of success of lean transformation and ultimately improve quality.

Lean for airport services: a systematic literature review and agenda for future research

Purpose

The purpose of this paper is to present the key findings of a systematic literature review (SLR) on Lean for services and, in particular, airport services.

Design/methodology/approach

The authors have utilised an SLR methodology proposed by Denyer and Tranfield (2009). A total of 23 papers published in 18 scientific journals have been systematically reviewed for evaluating and establishing the current status of Lean for airport services.

Findings

It was observed that there are no journal publications on the use of Lean in UK airport services. Although value stream mapping has been widely accepted as a powerful Lean tool across many service organisations, its applications in airport services is in its early stages. One of the biggest challenges in the implementation of Lean for airport services is about maintaining the level of service standards. The most common barriers in the implementation of Lean for airport services may include: resistance to change, varied definitions of the term Lean for different people across the business and understanding the need for Lean in airport services as there is a misconception that Lean is confined to manufacturing.

Research limitations/implications

This paper seeks to contribute to and broaden the limited body of evidence of the applicability of Lean to airport services and identify areas for further research and review.

Originality/value

This paper makes an attempt to demonstrate the use of Lean thinking for service industries and, in particular, airport services. The authors have identified less than five papers on the use of Lean thinking in airport services and this paper sets the foundation for future research on the use of process excellence methodologies such as Lean. Moreover, the authors firmly believe that the results of this SLR can be extremely beneficial to many managers working in Airport Service contexts, irrespective of the country and culture of the organisation.

An Evaluation of Lean IT Efficiency in Organization Using Fuzzy Approach

This article describes how nowadays due to the importance of information technology in organizations, it is necessary to examine the efficiency of IT used in the organization. Given the importance of IT in organizations, waste identification in such context and its elimination can have a significant effect on production quality optimization, service provision and IT management. Accordingly, the concept of lean IT was introduced in 2007 which mainly aims to make IT more efficient in organization as much as possible. The current study aims to examine lean IT level in organization. Therefore, first the criteria and sub-criteria of lean IT were determined by experts; after identifying their hierarchical structure, a questionnaire was given to the experts in IT department in two companies. In the next stage, another questionnaire was designed which included importance and status of criteria in the organizations from the viewpoint of the experts. Based on the obtained results, two criteria including “error prevention or hash” and “wait time/delay removal” obtained the highest priority.

Prioritizing lean management practices in public and private hospitals

Purpose - The purpose of this paper is to prioritize 21 healthcare wastes in public and private hospitals of United Arab Emirates (UAE). Design/methodology/approach - Seven healthcare wastes linked with lean management are further decomposed in to sub-criteria and to deal with this complexity of multi criteria decision-making process, analytical hierarchical process (AHP) method is used in this research. Findings - AHP framework for this study resulted in a ranking of 21 healthcare wastes in public and private hospitals of UAE. It has been found that management in private healthcare systems of UAE is putting more emphasis on the inventory waste. On the other hand, over processing waste has got highest weight in public hospitals of UAE. Research limitations/implications - The future directions of this research would be to apply a lean set of tools for the value stream optimization of the prioritized key improvement areas. Practical implications - This is a contribution to the continuing research into lean management, giving practitioners and designers a practical way for measuring and implementing lean practices across health organizations. Originality/value - The contribution of this research, through successive stages of data collection, measurement analysis and refinement, is a set of reliable and valid framework that can be subsequently used in conceptualization, prioritization of the waste reduction strategies in healthcare management.

Waste in health information systems: a systematic review

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.

V. Lean services: a systematic review

Purpose

The purpose of this paper is to highlight the importance of Lean methodology through an exhaustive literature review, and its implications and application in the service industry right from its initiation in 1990s till date.

Design/methodology/approach

The paper summarises the evolution of Lean in services and has systematically classified the reviewed literature in four dimensions, namely time, publisher, region and content. Further under “time” dimension, the literature is classified into Pre-Lean era, Lean awareness era, Lean Exploration era and Lean implementation era. Under the “content” dimension, the categories include theoretical foundation, frameworks/models and application/case studies.

Findings

The analysis inferred; Lean is gaining roads in services, though the research is still at nascent stage. Lean is applicable in services though transfer of Lean manufacturing principles to services has certain limitations because of the characteristics of services. The need is to focus on process difference between services and manufacturing. Respect for people and employment engagement is critical to Lean in service. The authors identified the necessity to standardise the Lean service definition, principles, and tools and to develop guidelines for structured implementation in service industry.

Research limitations/implications

Though multiple databases have been taken-up but that does not assume that the literature presented in this paper is by any means comprehensive. Development of a standard model/framework for Lean services is critical for future research. Rigorous industry-specific studies, specifically in developing nations are another area for future research. Future studies could analyse the impact of join applications and possible links between Lean service and other approaches like TQM, Six Sigma, etc., with an aim of process improvement.

Practical implications

This paper would serve as a resource for Lean practitioners as well as researchers as a fundamental platform, contributing to Lean body of knowledge.

Social implications

Service industry has special significance to the society in large. Many services including governments, public interest services, non-profit organisations, healthcare, banking, consulting, etc., has a significant share across markets. Lean being a proven methodology for successful process improvements has to be looked at from a services perspective. This paper helps in such interest.

Originality/value

Publications reviewing the adoption of Lean in services is scarce in literature. This paper serves as an excellent resource for research on the subject and will facilitate academicians and practitioners to objectively understand Lean in service sector.

Leanness assessment: a literature review

Purpose

Assessing the outcome of lean transformation journey has been of interest to both researchers and practitioners. Various qualitative and quantitative assessment methodologies have been proposed in literature to track and measure the degree of leanness attained. The purpose of this paper is to understand the evolution of this leanness assessment literature over different attributes and identify gaps for future research.

Design/methodology/approach

A detailed literature review of peer-reviewed journal articles and conference papers addressing leanness assessment was performed. Content analysis methodology involving a four-step process suggested by Mayring (2004) was adopted for this study.

Findings

The number of studies in literature on leanness assessment is low when compared to that in the area of lean implementation. Assessment methodologies developed are of wide range, varying from simple qualitative checklist to complex quantitative mathematical models. Following the trend of lean implementation literature, lean thinking assessment literature is also getting transformed from process-level monitoring to enterprise-level monitoring. Finally, based on this review, a simplified leanness assessment framework is proposed for future validation.

Research limitations/implications

Only peer-reviewed journals and conference papers were analyzed, while excluding the manuals, reports, and white papers from practice. Clustering of leanness assessment literature revealed that future studies in this domain would fall into two major categories, namely manufacturing leanness assessment and service leanness assessment.

Practical implications

Practitioners can use this review study to choose a suitable methodology for assessing the leanness attained in their organization by controlling for the structural attributes identified.

Originality/value

This is the first paper to review the topic “leanness assessment.” The review analyzes the entire literature available on leanness assessment to summarize its current status and identify potential future directions.

Is lean service promising? A socio-technical perspective

Purpose

– The purpose of this paper is to contribute to the ongoing debate about the effectiveness of lean practices in the service sector.

Design/methodology/approach

– This paper examines the impact of lean service on firm operational and financial performance. Exploratory factor analysis is used to reduce the data and identify the underlying dimensions of lean service, and partial least squares structural equation modelling is used to test the developed model.

Findings

– The results indicate that the social bundles of lean service had an independent positive impact on firm operational and financial performance. Furthermore, while the technical bundles had an independent positive effect on only the operational performance, they interacted with the social bundles to improve both the operational and financial performance. The findings suggest that service managers must follow a systematic approach when implementing lean service practices without focusing on one side of the system at the expense of the other.

Practical implications

– The paper highlights the importance of implementing lean service as a socio-technical system (STS) if service firms are to achieve the best possible benefits from their implementation. The motivation factor (social side) and the customer value factor (technical side) are capable of improving all operational performance dimensions and profit margin even if implemented alone. Therefore, service managers with limited resources are encouraged to start lean service implementation with practices within these factors. However, they can also expect improved operational and financial performance from implementing other factors as they positively interact to further improve performance.

Originality/value

– Viewing lean service as a STS, this paper incorporates a larger set of lean practices than previous studies and demonstrates empirically their capability of improving service firms’ operational and financial performance. It contributes significantly to the emerging literature on lean service by empirically testing the mechanism through which lean service affects firm performance.

Prioritizing lean practices for implementation in IT support services

Purpose

– The purpose of this study is to capture the perception of the IT support service practitioners regarding the applicability of the lean practices and prioritize them after analyzing the gaps with respect to current usage and importance from practitioners’ perspective.

Design/methodology/approach

– It involved development of an instrument to capture the perceptions of the IT support service practitioners. The data collected was quantitatively analyzed by using statistical techniques and it involved testing of the hypotheses.

Findings

– The study conducted a gap analysis on the perceived current usage of the lean practices versus the perceived ideal usages of the lean practices from practitioners’ perspective. The gap analysis report revealed that gaps of all practices are not same from the practitioners’ viewpoint. This gap analysis was useful for prioritizing of the practices and resource allocation.

Originality/value

– This study was conducted in a relatively new domain, where mature empirically based studies are scarce. This study set out to determine the practitioners’ perception of the applicability of lean practices in IT support service organizations. It provides a sound basis for further research on lean implementation in IT support service area.

How do the practitioners perceive relevancy of lean practices in IT support services?

Purpose

– The purpose of this paper is to capture and analyze the perception gaps with respect to the current usage and importances of the lean practices from the IT support service practitioners’ perspective.

Design/methodology/approach

– A questionnaire was developed to capture the perceptions of the IT support service practitioners. The survey data were quantitatively analyzed by using statistical techniques which included testing of the hypotheses.

Findings

– The analysis of the perception gaps revealed that even though all the gaps are statistically significant but gaps between different practices are not same. The gap analysis would be useful for IT support service organization in prioritizing the lean practices for implementation.

Originality/value

– Lean practice applicability and implementation in IT support services is a relatively new domain, where mature empirically based studies are scarce. This study provides a sound basis for further research on lean implementation in IT support service area.

The relationship between lean operations and sustainable operations

Purpose

– The adoption of lean operational practices and independently the uptake of business practices related to sustainability and corporate social responsibility continues to grow. Past research has hinted at relationships between these two areas – suggesting that “lean is green” (e.g. Florida, 1996). The lean mantra of waste reduction and “doing more with less” is immediately apparent as delivering environmental benefits and has formed the basis of past research (e.g. Hughes, 2012). Almost all research linking lean operations or lean supply chains to sustainability issues have focused exclusively on environmental impact. The purpose of this paper is to explore the broader sustainability benefits of lean operations.

Design/methodology/approach

– The paper uses a longitudinal multi-year (up to four years observation), multi-case analysis (n=5).

Findings

– The paper reports that lean operations meet a wide range of sustainability outcomes beyond environmental benefits (including supply monitoring, transparency, workforce treatment, and community engagement). The paper specifies the internal and external policies, procedures, tools, and strategies for implementation of lean and sustainable operations management (OM). This is encapsulated in the development of a stage-based theoretical model of lean-sustainability. Further, it is proposed that lean implementation and sustainability performance are in fact interlinked.

Originality/value

– Past research on the role of lean operations in improving sustainably has focused almost exclusively on environmental benefits accruing from toolkit/workplace level waste reduction. This paper demonstrates that lean provides more than a toolkit (a philosophy and strategic direction) and that this meets a wide range of sustainable outcomes. This finding makes major contributions to conceptualising how lean operations influence sustainability outcomes. The paper develops the first integrative stage-based model of lean and sustainable OM.

Service improvement in the English National health service: Complexities and tensions

The English National Health Service (NHS) is a public sector organisation with a longstanding objective to deliver high quality healthcare that is free at the point of use. In order to achieve this, the NHS has endured an evocative and controversial theme of reform across many decades. Despite such high levels of reform, the recent Operating Efficiency Framework declared that the NHS is about to enter its toughest ever financial climate. This paper will illustrate the complexities and tensions of implementing service improvement in the NHS in a climate of persistent policy reform, reduced budgets and tough regulation. The paper reports findings of three case studies of hospital trusts in the UK in relation to the implementation of Lean improvement methodologies, highlighting key complexities of a hospital context and the corresponding tension with service improvement activity.

Service improvement in the English National health service: Complexities and tensions

The English National Health Service (NHS) is a public sector organisation with a longstanding objective to deliver high quality healthcare that is free at the point of use. In order to achieve this, the NHS has endured an evocative and controversial theme of reform across many decades. Despite such high levels of reform, the recent Operating Efficiency Framework declared that the NHS is about to enter its toughest ever financial climate. This paper will illustrate the complexities and tensions of implementing service improvement in the NHS in a climate of persistent policy reform, reduced budgets and tough regulation. The paper reports findings of three case studies of hospital trusts in the UK in relation to the implementation of Lean improvement methodologies, highlighting key complexities of a hospital context and the corresponding tension with service improvement activity.

How lean are financial service companies really? Empirical evidence from a large scale study in Germany

Purpose

– Lean thinking is important for a successful implementation of process-driven changes. Especially financial service providers are forced to improve their organisational efficiency due to intense competition and regulatory burdens. The purpose of this paper is to identify how lean financial service companies in Germany are.

Design/methodology/approach

– A quantitative survey published online is used. In total, 3,624 employees from every hierarchical level participated in the study.

Findings

– The results not only reveal that there is only a moderate lean thinking in financial service companies. We rather observe a “lean fata morgana”. Employees in general believe they are leaner than their actual behaviour discloses. In addition, managers perceive their work environment leaner than subordinates do. At the same time, managers do not behave lean as they spend almost a third of their working time with operational work instead of guiding the employees.

Research limitations/implications

– Answers are based on the anonymous, subjective ratings of employees and thus statements regarding single organisations cannot be made.

Practical implications

– The results can be used by managers to address typical weak aspects when introducing lean management to improve the success chances. Furthermore, the questionnaire can be applied for assessments for a single organisation before an introduction of lean.

Originality/value

– For the first time, this paper presents results which cover the lean degree beyond a single company’s perspective. The results allow for an indication which aspects of lean are unincisive with regard to functional areas and hierarchical levels of financial service providers.

A scale for measuring the applicability of lean practices in IT support services

Purpose

– The purpose of this paper is to present research that was conducted with an objective to conceptualize and develop an instrument for the measurement of the perception of IT support service practitioners about the applicability of lean concepts in IT support services.

Design/methodology/approach

– Scale items were identified from current literature and the survey instrument was used to collect data from IT support service practitioners. The constructs’ measurement models were tested and the scale was validated by using statistical tools.

Findings

– The results of the study indicate that the operational measures developed here satisfy the criteria for unidimensionality, reliability and validity.

Research limitations/implications

– While selecting and excluding measurement items for the survey, the researchers have followed established principles of survey research; but it may have been affected by the personal bias of the author. The sample for the survey was drawn from IT support service companies located in India, thus the results are generalizable only to the extent that these businesses represent the population of all businesses. Another limitation is that no prior survey/case studies were carried out to collect IT service practitioner's perception about the applicability of lean practices.

Originality/value

– This paper provides a new measurement instrument for measuring the applicability of lean practices in IT support service environment.

A literature review of empirical research methodology in lean manufacturing

Purpose

– The purpose of this paper is to review the existing literature on empirical research in lean manufacturing (LM). It provides a critical assessment of empirical research methodology of 178 research articles published from 1990 to 2009.

Design/methodology/approach

– The article reviewed a set of 178 empirical research articles in LM research with respect to empirical research design and its related facets. The 236 empirical research articles which are published in 70 journals during 1990-2009 are collected from four major management science publishers, namely, Emerald Online, Science Direct, Springer Link and Taylor & Francis. In total 178 research articles published in 24 journals are selected for critical review of empirical research methodology in LM. The approach for the critical review of 178 empirical research articles in LM is based on empirical research approach given by Flynn et al. (1990). The critical review discusses the current status of empirical research in LM and future directions.

Findings

– It is concluded from the analysis of the results that: the number of empirical research articles in LM is increasing at a faster pace than ever before; theory building and theory verification articles are equally advanced; the researchers have also unexplored various aspects of empirical research such as importance of triangulation of data, alternate research designs other than survey and case studies; contextual focus is mostly on the manufacturing industry; more focus required on other aspects of empirical research such as collecting the samples from developing and undeveloped countries, larger sample size, longitudinal data collection methods. Finally, it concludes that there is a need of LM frameworks, which gives the stepwise process to remove all kinds of wastes from any organization.

Originality/value

– To the knowledge of the authors, it is the first of its kind attempt to critically review the empirical research articles in LM. The review analysis entirely focussed on descriptive statistics of empirical research in LM. The sample size is one of the unique features of this research as the number of shortlisted articles is 178 in 24 journals published over a time span of 20 years (1990-2009).

Lean manufacturing: literature review and research issues

Purpose

– The advent of recession at the beginning of twenty-first century forced many organizations worldwide to reduce cost and to be more responsive to customer demands. Lean Manufacturing (LM) has been widely perceived by industry as an answer to these requirements because LM reduces waste without additional requirements of resources. This led to a spurt in LM research across the globe mostly through empirical and exploratory studies which resulted in a plethora of LM definitions with divergent scopes, objectives, performance indicators, tools/techniques/methodologies, and concepts/elements. The purpose of this paper is to review LM literature and report these divergent definitions, scopes, objectives, and tools/techniques/methodologies.

Design/methodology/approach

– This paper highlights various definitions by various researchers and practitioners. A total of 209 research papers have been reviewed for the research contribution, research methodology adopted, tools/techniques/methodologies used, type of industry, author profile, country of research, and year of publication.

Findings

– There are plethora of LM definitions with divergent objectives and scope. Theory verification through empirical and exploratory studies has been the focus of research in LM. Automotive industry has been the focus of LM research but LM has also been adopted by other types of industries also. One of the critical implementation factors of LM is simultaneous adoption of leanness in supply chain. LM has become an integrated system composed of highly integrated elements and a wide variety of management practices. There is lack of standard LM implementation process/framework.

Originality/value

– The paper reviews 209 research papers for their research contribution, research methodology, author profile, type of industry, and tools/techniques/methodology used. Various characteristics of LM definitions are also reviewed.

Performance evaluation of lean manufacturing implementation in Brazil

Purpose

– Manufacturing companies worldwide have been replacing traditional mass-production practices by lean initiatives. This translation process is progressive and may vary depending on several factors. Hence, it could be expected that the degree of adoption of the lean practices could vary significantly among industries, regions and even countries. The purpose of this paper is to explore the implementation performance of lean principles in Brazil, the paper developed a survey in the Sao Paulo Metropolitan Area, which considered 51 industries of different sizes, from several industrial segments, nationals and multinationals.

Design/methodology/approach

– The proposed survey was developed using as a normative framework the SAE J4000 standard – identification and measurement of the best practice in implementation of lean operation and the SAE J4001 – implementation of lean operation user manual. To measure the implementation degree of the lean practices in the researched industries, the paper proposed the utilization of two concepts: the degree of leanness (DOL) of an element of J4000 and DOL of a company. Also three hypotheses were tested, trying to establish the relationship among the DOL and firm ownership, their size and respective industrial sector.

Findings

– The results obtained in the survey demonstrated that the performance of lean initiative implementation is not uniform among the companies located in the researched area. Outcomes also showed that the degree of implementation of the lean practices by multinational companies was higher than that for the national firms. However, it was not possible to establish a relationship between the DOL and the size of the firms. Neither a clear and definite association between DOL and industrial sector was possible to be identified.

Practical implications

– For the practitioners and managers dealing with the lean implementation, this paper gives a relevant contribution because it shows how they can effectively use an existing tool to measure the implementation of the lean practices in their respective firms. Furthermore, the DOL calculation for each individual element of the J4000 standard could also be used by practitioners and managers to identify specific problems and opportunity areas where practical actions could be identified to improve the lean implementation.

Originality/value

– This paper contributes to the lean manufacturing theory because it proposes a theoretical way to measure the degree of implementation of the lean initiatives in the manufacturing companies. Also the survey results generate additional research material that could be used by other researchers to further explore the subject in the area.

The lean-performance relationship in services: a theoretical model

Purpose

– The extant literature on lean service reveals a noticeable lack of theoretical models establishing the core constructs of lean service, their interrelation and impact on organizational performance. The purpose of this paper is to address this gap by proposing a theoretical model in which lean constructs are identified and operationalized to establish their interrelation and impact on organizational performance.

Design/methodology/approach

– This paper synthesizes information drawing on a systematic review of the literature on lean service, other relevant academic literature to develop a theoretical model and a set of propositions. Drawing on the universal theory, socio-technical systems theory and contingency theory (CT), the paper highlights and clarifies the potential impact of lean service on operational and financial performance.

Findings

– This study identifies a comprehensive set of lean technical practices, lean supportive practices, inhibitors and expected outcome of lean service. Expected relationships among those constructs are established by developing a conceptual framework with several propositions based on the relevant literature and the socio-technical system theory, the universal perspective and the CT, when relevant. Moreover, six influential contextual variables on the lean-performance relation are identified based on a review of the management accounting literature, organizational strategy literature and diversification literature to overcome limitations of previous studies.

Originality/value

– This paper covers a gap in the literature by identifying and operationalizing lean service constructs and offering a theoretical model with several propositions that establish relationships between lean constructs and overcome limitations in previous studies by identifying six contextual variables that are important factors in the lean-performance associations.

A FMEA-based approach to prioritize waste reduction in lean implementation

Purpose

– This paper presents a proposal of adaptation of the failure mode and effect analysis method to analyze wastes and define priorities for actions aimed at minimizing or eliminating these wastes based on the criteria of severity, occurrence and detection.

Design/methodology/approach

– The proposition was developed in parallel to the implementation of a lean production system of a manufacturing company. A pilot application of the proposal was based on the analysis of a flow of information for order processing.

Findings

– Application of the proposed procedure results in a classification of levels of priority for waste reduction of the analyzed waste modes. Following this procedure, high priority will be given to actions focused on the elimination or minimization of the most common causes of the most severe waste modes.

Originality/value

– Prioritization of actions to minimize waste is essential to sustain lean production systems. However, identifying the wastes most in need of attention is not always straightforward and methods presented in the literature to evaluate leanness do not focus on waste reduction prioritization. Adoption of the proposed technique can certainly aid planning implementation and improvement of lean production programs, and in the end, it can contribute to the effectiveness and sustainability of lean production systems.