An intuitionistic fuzzy cognitive map approach to evaluate success factors of lean six sigma project management methodology

Abstract

Lean project management is to integrate the principles of lean manufacturing into the project management processes. Besides, six sigma methodology aims to solve different business issues by constructing disciplined and structured procedures. Lean six sigma is considered as a business improvement tool that integrates two distinctive disciplines named as lean and six sigma complementing each other for improving business processes of organizations. Lean six sigma project management methodology refers to the combination of the waste reduction principles of lean and quality improvement objectives of six sigma. This work introduces an intuitionistic fuzzy cognitive map (IFCM) technique to assess the importance degrees of success factors of leans six sigma project management. The presence of causal links among evaluation criteria; uncertainty, vagueness, and hesitation in data lead to employ an intuitionistic decision aid approach to evaluate the success factors of lean six sigma project management. The application is illustrated via a case study which is conducted in a bank that performs in Turkish banking sector.