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Article
Publication date: 5 February 2018

Loukas K. Tsironis

The purpose of this paper is to propose a way of implementing data mining (DM) techniques and algorithms to apply quality improvement (QI) approaches in order to resolve…

Abstract

Purpose

The purpose of this paper is to propose a way of implementing data mining (DM) techniques and algorithms to apply quality improvement (QI) approaches in order to resolve quality issues (Rokach and Maimon, 2006; Köksal et al., 2011; Kahraman and Yanik, 2016). The effectiveness of the proposed methodologies is demonstrated through their application results. The goal of this paper is to develop a DM system based on the seven new QI tools in order to discover useful knowledge, in the form of rules, that are hidden in a vast amount of data and to propose solutions and actions that will lead an organization to improve its quality through the evaluation of the results.

Design/methodology/approach

Four popular data-mining approaches (rough sets, association rules, classification rules and Bayesian networks) are applied on a set of 12,477 case records concerning vehicle damages. The set of rules and patterns that is produced by each algorithm is used as an input in order to dynamically form each of the seven new quality tools (QTs).

Findings

The proposed approach enables the creation of the QTs starting from the raw data and passing through the DM process.

Originality/value

The present paper proposes an innovative work concerning the formation of the seven new QTs of quality management using DM popular algorithms. The resulted seven DM QTs were used to identify patterns and understand, so they can lead even non-experts to draw useful conclusions and make decisions.

Details

Benchmarking: An International Journal, vol. 25 no. 1
Type: Research Article
ISSN: 1463-5771

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Article
Publication date: 4 September 2017

Loukas K. Tsironis, Katerina D. Gotzamani and Theofilos D. Mastos

e-Business (e-B) organization is an integrated synergy of internet and supply chain. It is an organizational environment which consists of associations among suppliers…

Abstract

Purpose

e-Business (e-B) organization is an integrated synergy of internet and supply chain. It is an organizational environment which consists of associations among suppliers, customers, work force and information technology. An important issue for an e-B organization is the comprehension of the critical factors that affect its success, in order to realize its full advantages and how it results in efficiency improvements of the organizations. The purpose of this paper is twofold: first to identify the critical success factors (CSFs) that determine the successful implementation of e-B and second to develop an integrated e-B model based on the CSFs.

Design/methodology/approach

By following a quantitative approach, primary data were collected through a structured questionnaire from 174 Greek e-B firms. An initial exploratory factor analysis was conducted, followed by confirmatory factor analysis (CFA) and structural equation modeling (SEM).

Findings

Findings have shown that there was a direct association of the Resource Based View (RBV) on the supply chain view (SCV) of a firm, which in turn influenced the performance/results of an e-B organization. It is concluded that e-B performance results and value creation are linked to customers’ and partners’ orientation (SCV) and human resources and information technology (RBV).

Originality/value

The proposed framework contributes to the understanding of the successful implementation of e-B, by proposing a fifthfold framework. The proposed framework portrayed a very fundamental result, that the resourced based view and the SCV of the organization are the critical priorities and have a direct and positive affect on the performance and efficiency of the successful implementation of e-B.

Details

Business Process Management Journal, vol. 23 no. 5
Type: Research Article
ISSN: 1463-7154

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Article
Publication date: 4 July 2016

Loukas K Tsironis and Alexandros G. Psychogios

The purpose of this paper is to adopt a multiple case-study approach, of three companies, in order to identify the factors affecting Lean Six Sigma (L6σ) implementation in…

Abstract

Purpose

The purpose of this paper is to adopt a multiple case-study approach, of three companies, in order to identify the factors affecting Lean Six Sigma (L6σ) implementation in service industry.

Design/methodology/approach

Secondary data were collected through companies’ documents, written procedures and quality assurance policies. Primary data were collected through a number of in-depth interviews with managers and quality experts.

Findings

The analysis of qualitative data gathered through in-depth interviews with managers in all three cases resulted in the emergence of variety of critical success factors (CSFs) regarding L6σ implementation in service industry. As it can be seen the great majority of the factors have been identified in all three cases. Moreover the analysis shows that there are two categories of factors emerged.

Originality/value

This study has four major contributions. First, it provides an intergraded multi-factor framework regarding the implementation of L6σ in service industry. In particular, this study contributes with three more particular factors that influence the implementation of L6σ in services, namely, top-management active involvement, HR support activities, and practices and systems. Second, it focusses on the responses of managers, who play the critical role in the adoption of L6σ. Third, supports and expands current literature on the key success factors of L6σ application. Finally, it provides future ideas to explore and develop more the suggested L6σ framework.

Details

Business Process Management Journal, vol. 22 no. 4
Type: Research Article
ISSN: 1463-7154

Keywords

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Article
Publication date: 2 November 2015

Loukas K. Tsironis and Panagiotis Petros Matthopoulos

Supply chain (SC) is a homogeneous and interconnected network of firms which manages supplies, storages and handles material, information, personnel, equipment and final…

Abstract

Purpose

Supply chain (SC) is a homogeneous and interconnected network of firms which manages supplies, storages and handles material, information, personnel, equipment and final products throughout its length. The SC can be the means by which businesses add value to customers and therefore competitive advantage in the international market. Competitiveness no longer exists among individual members of a SC but between SCs. International literature pointed out, that strategy and competitiveness associated with specific strategic priorities. In this paper will be documented that the priorities as objectives of strategic importance comprise the key areas for the performance of the SC network. To support this, a systematic framework of strategic priorities, will be developed, which will visualize the major SC assessment areas that the SC network should turn its improvement efforts. The paper aims to discuss these issues.

Design/methodology/approach

In total, 200 high level managers from 71 Greek manufacturing companies covering the whole country using their own SC networks took part in the study. Data analysis were conducted to create a model that describes the strategic priorities which are important, for the competitive advantage of their SC network.

Findings

The results revealed seven critical strategic priorities: internal flexibility, production quality, waste reduction, customer focus, sustainability, reduction of production cost and efficiency. This paper analytically explores the strategic practices that seem to influence SC network performance and generates a systematic framework of the critical strategic priorities of the SC network performance.

Practical implications

The proposed framework has six major advantages. First the research outcome enables managers to design their SC strategy. Second, proved the great importance of the strategic priorities institutionalization. Third, makes clear to stakeholders which are the SC network performance issues to consider. Fourth, the proposed framework could serve as a suitable formula for assessing the effectiveness and readiness of SC to face the competition. Fifth, it is an effective way of prioritizing the strategic practices as it provides the most important areas on which the firm can base tasks like evaluation, benchmarking and comparison of its SC both as a network and as individual firms. Finally, the proposed framework is an effective way to evaluate the consistency of strategic objectives and actions adopted for the SC.

Originality/value

Literature review revealed a very important conclusion. It has been developed a broad discussion concerning issues on strategic practices which are responsible for the competitive advantage of the SC network. However, there has not been a significant effort on integrating all the practices under the spectrum of the SC in order to distinguish the most important of these practices that can lead to competitive advantages.

Details

Business Process Management Journal, vol. 21 no. 6
Type: Research Article
ISSN: 1463-7154

Keywords

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Article
Publication date: 6 January 2012

Alexandros G. Psychogios, Jane Atanasovski and Loukas K. Tsironis

The purpose of this paper is to investigate issues related to the application of Lean Six Sigma (L6σ) in a service industry. By adopting a case‐study approach this paper…

Abstract

Purpose

The purpose of this paper is to investigate issues related to the application of Lean Six Sigma (L6σ) in a service industry. By adopting a case‐study approach this paper analytically explores the critical success factors that affect L6σ implementation.

Design/methodology/approach

The study adopts a qualitative approach attempting to explore the nature of L6σ application in a service context. In particular, two case studies from the telecommunications industry have been selected. Secondary data were collected through an analysis of companies' documents, written procedures and quality assurance policies. Moreover, primary data were collected through a number of interviews with managers and quality experts.

Findings

There are particular factors that influence the implementation of L6σ in organizations, that can be distinguished in facilitators like Top Management Involvement & Support, Quality‐driven Organizational Culture, Quality‐driven Training, Top Down & Bottom Up Project Selection, Customer Satisfaction, Prior implementation of other quality improvement programs and Supportive Performance Management & IT Systems, and inhibitors such as Lack of Awareness for L6σ, Lack of Awareness for the Need of Continuous Quality Improvement Programs & L6σ, Lack of Strategic Orientation, Working Mentality & Habits.

Research limitations/implications

The main limitation of the study is the fact that in both cases only managers and top administrators were approached. Frontline employees who are directly involved in L6σ approach may offer a clearer view on issues related to the impact of critical factors on L6σ application.

Originality/value

This study has four major advantages. First, it expands our understanding regarding the implementation of L6σ in a service industry, in which the application of management models is more complex and problematic. Second, it focuses on the responses of managers, who always play the most significant role in the adoption of such techniques. Third, it explores the quality management initiatives in the telecommunications industry. Finally, it provides future studies with a L6σ multi‐factor application approach that can be further tested and developed.

Details

International Journal of Quality & Reliability Management, vol. 29 no. 1
Type: Research Article
ISSN: 0265-671X

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Article
Publication date: 5 March 2018

J. Muraliraj, Suhaiza Zailani, S. Kuppusamy and C. Santha

Literature reviews are a pervasive aspect in research. An ever mounting field such as Lean Six Sigma requires a perpetual touch on the subject to accentuate insights that…

Abstract

Purpose

Literature reviews are a pervasive aspect in research. An ever mounting field such as Lean Six Sigma requires a perpetual touch on the subject to accentuate insights that can be researched about. The purpose of this paper is to address the published literatures in the field of Lean Six Sigma through multiple criterion for an enhanced understanding of the subject matter through summarizing its current trends, uncovering existing literature gaps and revealing opportunities for future research in the field.

Design/methodology/approach

The literature review on Lean Six Sigma field spans around 17 years that includes peer-reviewed journals from management, business, engineering, healthcare, manufacturing, military among the many disciplines. The study uses a content analysis approach in which several dimensions of the literature were analysed: purpose or focus of study, years of publication, journal name or publications, methodologies, theories used, country of study, industry sub-sectors, active authors in the field, critical success factors, barriers and challenges and the most contribution of Lean Six Sigma papers by universities.

Findings

Eleven important findings from the analysis were summarized among them; the field of Lean Six Sigma had begun to grow significantly since the new millennium particularly after the 2004-2007 or 2008 period; standalone concepts of Lean and Six Sigma are highly researched compared to the integrated concepts; large proportion of perspective, conceptual and descriptive based studies; lack of empirical validity on the fusion between Lean and Six Sigma; lack of theoretical based studies, etc.

Research limitations/implications

The study is limited to 102 journals in commonly searched databases in the subject matter which produced 261 journal papers. This study seeks to broaden the summary of studies done under the keyword “Lean Six Sigma”.

Originality/value

The review analysis uses a content analysis approach in search of valuable gaps in existing research. The study found 261 papers from 102 journals that were published over the past seventeen years (2000-2016). This paper provides scholars, practitioners and managers with insights on the present trends and focus of Lean Six Sigma in addition to what else are lacking in the subject matter, which could pave the way for future research and practical endeavours.

Details

International Journal of Lean Six Sigma, vol. 9 no. 1
Type: Research Article
ISSN: 2040-4166

Keywords

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Abstract

Details

The TQM Magazine, vol. 15 no. 3
Type: Research Article
ISSN: 0954-478X

Keywords

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Article
Publication date: 29 November 2011

Matloub Hussain, Loukas Tsironis and Mian M. Ajmal

The purpose of this paper is to argue that the quality function deployment (QFD) matrix that has been successfully used for developing products from customer needs can…

Abstract

Purpose

The purpose of this paper is to argue that the quality function deployment (QFD) matrix that has been successfully used for developing products from customer needs can also be applied to improve the service quality of telecommunication companies.

Design/methodology/approach

The paper presents a case study of the two big telecom companies (Ufone and Mobilink) of Pakistan. Data have been collected by a cross‐sectional field study of users, frontline employees and management of telecom companies. The QFD matrix has been applied to identify customer needs, to do comparative analysis of the prepaid services of these companies and to recommend the suitable measure for incorporating these requirements into their services.

Findings

It has been found that through emphasizing two technical descriptors (Antennas and Base Station Controller System), a company will not only be in a competitive position to meet the customer's demand but will also gain an advantage over its competitor.

Research limitations/implications

Research findings are limited to telecom companies. Further research can be carried out in other service providing companies.

Practical implications

Research outcomes also imply that if managers want to listen to the voice of their customers and update their products and services accordingly, the proposed methodology of QFD is much more effective than the traditional approaches, in which decisions regarding the product or services are prioritized based on the manager's point of view.

Originality/value

Most of the previous research has applied QFD for developing products from customer needs. This is one of the few studies which have successfully applied the QFD Matrix in service providing companies.

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Article
Publication date: 5 June 2009

Loukas Tsironis, Kiriakos Anastasiou and Vassilis Moustakis

The purpose of this paper is to evaluate and improve two popular business process modelling languages (BPMLs) the Integration definition for function modelling (IDEF0) and…

Abstract

Purpose

The purpose of this paper is to evaluate and improve two popular business process modelling languages (BPMLs) the Integration definition for function modelling (IDEF0) and event‐driven process chain (eEPC).

Design/methodology/approach

The paper aims to select, compare and evaluate against a proposed criteria framework two popular BPMLs. In order to meet end‐user requirements, it suggests concrete improvements for either language. Evaluation findings and improvement attempts are documented over a case study within the context of a large European aerospace industry. The languages are applied through the use of appropriate software such as BPWin and Arena Simulation Software for IDEF0 and Architecture of Integrated Information Systems (ARIS) Toolset for eEPC.

Findings

Improved languages seem to overcome several deficiencies and increase their modelling performance. Improvements in IDEF0 include: classification of component information and insertion of logical operators. In this approach the language describes not only the information flow within the process, but also the time sequences via component discrimination. Improvements in eEPC include event chain diagram in ARIS house of business engineering methodology, which represents the interrelations between functions of different diagrams and the linkages among components and resources to include resources planning.

Practical implications

Results showed that language deficiencies were clarified. Thus, the improvements made, constitute better modelling performance and the development of more reliable models.

Originality/value

The paper outlines a systematic evaluation framework with concrete criteria. Furthermore, the improvements made, are a further step towards increased modelling performance, lean and comprehend diagrams.

Details

Business Process Management Journal, vol. 15 no. 3
Type: Research Article
ISSN: 1463-7154

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Article
Publication date: 25 September 2007

Nikolaos Bilalis, Emmanuel Alvizos, Lukas Tsironis and Luk van Wassenhove

The paper aims to present a clear methodological path for assessing the competitiveness of a specific industrial sector with the use of the Industrial Excellence Award…

Abstract

Purpose

The paper aims to present a clear methodological path for assessing the competitiveness of a specific industrial sector with the use of the Industrial Excellence Award (IEA) model. The paper introduces the concepts evaluated by the IEA model and addresses the ways with which varied management data may be analyzed in order to provide useful insights for improvement in industrial processes such as new product and process development, supply chain management, strategy formulation and deployment.

Design/methodology/approach

Sixty European textile companies provided information concerning their business processes over the course of three years in accordance with the Industrial Excellence Award (IEA) model developed by INSEAD Business Schools. Subsequently, the textile industry companies were compared with 73 excellence‐driven European manufacturers which either won or distinguished themselves in the award competition during the same time period. The management information from both datasets was treated with the proper statistical tools (according to their nature) in order to attain secure and minimally biased conclusions.

Findings

The benchmarking process revealed the areas in which the textile sector was lagging behind the excellence‐driven manufacturers. Furthermore, it detected their differences in specific measures of industrial management and business mentality. On a theoretical level, the analysis verified the general reliability of the IEA model's scales, aiming at assessing abstract management constructs while fine tuning them.

Research limitations/implications

The thorough inspection of the textile companies' performance attributes and characteristics has identified many of the sector's shortcomings that merit further investigation.

Practical implications

The results of the analysis served as valuable feedback to textile managers aiming at bettering their industrial processes in many ways, such as benchmarking their performance against their sector or other sectors, and observing trends that managers from other sectors are putting effort into in order to improve their performance.

Originality/value

The paper provides a clear‐cut methodology for the understanding and statistical analysis of multifaceted industrial management data included in excellence models.

Details

International Journal of Productivity and Performance Management, vol. 56 no. 7
Type: Research Article
ISSN: 1741-0401

Keywords

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