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Road towards Lean Six Sigma in service industry: a multi-factor integrated framework

Psychogios, Alexandros G.; Tsironis, Loukas K.


Alexandros G. Psychogios

Loukas K. Tsironis


Purpose - This study adopted 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 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. Firstly, it provides an intergraded multifactor 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 & systems. Secondly, it focuses on the responses of managers, who play the critical role in the adoption of L6σ. Thirdly, 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.


Psychogios, A. G., & Tsironis, L. K. (2016). Road towards Lean Six Sigma in service industry: a multi-factor integrated framework. Business process management journal, 22(4), 812-834.

Journal Article Type Article
Acceptance Date Jan 17, 2016
Publication Date Jul 4, 2016
Deposit Date Jan 29, 2016
Publicly Available Date Nov 23, 2017
Journal Business process management journal
Print ISSN 1463-7154
Publisher Emerald
Peer Reviewed Peer Reviewed
Volume 22
Issue 4
Pages 812-834
Keywords Lean Six Sigma; Critical success factors; Systems approach; Multiple case-studies; Service industry
Public URL
Publisher URL
Additional Information This is an author's accepted manuscript of an article which has been published in: Business process management journal, 2016, v.22 issue 4.


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