A Methodology for Determining Leanness Critical Success and Failure Factors in Manufacturing Organizations Using Fuzzy Logic

Inevitable dominance of lean system concepts on operations world in recent decades, has motivated lots of companies to implement them. But not considering the preferences and limited resources, has caused their failure. This paper aims at presenting a methodology for determining leanness path for companies using their leanness critical success and failure factors. For this first lean indexes importance and performance were measured using linguistic variables and then locating them in strategic lean matrix, critical success and failure were determined. Finally pareto law was used to determine the most efficient factors in these two areas.