The reference for understanding the concepts and tools of Lean Six Sigma: Six Sigma is a statistical quality goal and also a tool of quality management. The starting point of this method, which focuses on efficiency and quality, is the definition of objectives. Following this, the deviation from this ideal target is determined. Its core element is the description, measurement, analysis, improvement, and monitoring of business processes, among other things, using statistical methods. The goals are aligned with the process metrics of a company and the needs of customers. This book presents all the important tools for applying Lean Six Sigma and systematically categorizes them according to their areas of application. Detailed explanations help to understand which tool to use, when, how, and why. From the content: - Voice of the Customer - Value Stream Analysis.