Exploring TLS approaches: A review

Purpose-This paper gives an overview on the three methodologies of Continues Improvement, Theory of Constraints, Lean and Six Sigma designated in the literature by TLS models discussing the identified different integration frameworks developed at this moment.
Design/methodology/approach –A literature review of Theory of Constraints, Lean and Six Sigma was conducted to provide a comprehensive understanding of each approach. Current integration models were then identified studied and discussed, This discussion enabled the identification of some weaknesses and the imposed further work on the development of a new proposed framework, later tested through a case study.
Findings –The research work reveal differences and convergence points between Theory of Constraints, Lean and Six Sigmacontinuous approaches. Seven different integration models were identified and discussed revealing the opportunities for integration improvement. This paper presents a different improved integration framework
Originality/value –This paper present an overview of the current TLS frameworks highlighting major convergence points and currentweaknesses and discusses the main current integration models presenting a hands-on new approach, simple, flexible and capable to improve integration and companies results

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Business and Management, Theory of Constraints, Lean, Six Sigma, TLS integration models and Frameworks