Analysis of barriers for implementation of integrated Lean Six Sigma and Industry 4.0 using interpretive ranking process

Purpose Lean Six Sigma (LSS) is a continuous improvement procedure that helps in improving the performance, decreasing variations, reducing lead time and increasing profit. Industry 4.0 (I4.0) portrays a new phase in the enterprise and aims at digitalization of the enterprise. The basis of I4.0 is a cyber-physical system, leading to product networking and complete coordination of process, value enhancement and further optimization. Integrating LSS methodology with I4.0 will give an edge in competitiveness to an enterprise. The aim of this study is to identify and analyze barriers to have an obstacle free implementation. Design/methodology/approach LSS and I4.0 barriers are identified through literature review. In this paper 18 barriers of LSS and I4.0 that hinder the implementation of integrated LSS and I4.0 are collected. Analysis of barriers was done using interpretive ranking process (IRP). Findings From the results, it is observed that lack of top management attitude, commitment and involvement are the most dominant barriers. Practical implications The study is done by gathering inputs from industry practitioners and derived inferences have practical relevance. Originality/value The study of barriers for integrated LSS and I4.0 is the original contribution of the authors.