Lean management means -lean management-. It is a management concept that aligns the entire company according to the principles of lean production. Lean management is understood to be a management approach that is characterized in particular by the basic principles of decentralization and simultanization and pursues the goal, both within and across companies, of bringing about greater customer orientation while consistently reducing costs for the entire management of the company. (Source: Gabler Verlag (publisher), Gabler Wirtschaftslexikon,