Which of the following statements is false when comparing Lean principles to Six Sigma principles?

The statement that Six Sigma focuses on improving value streams is not accurate within the context of Six Sigma principles. Six Sigma is primarily concerned with reducing variation and defects in processes through a data-driven methodology that emphasizes the reduction of process variation and the use of statistical tools. It focuses on identifying and solving specific problems that lead to inefficiencies or defects, rather than on the broader concept of value streams.

In contrast, Lean principles are designed to maximize customer value while minimizing waste, which includes improving the flow of processes to enhance value streams. Lean methodologies prioritize the elimination of non-value-adding activities and aim to create smoother process flows through techniques such as value stream mapping.

The other statements accurately reflect Lean and Six Sigma principles. Lean is indeed focused on process flow, emphasizing efficiency and the elimination of waste, while visual tools are often employed in Lean practices to map and understand process flow. These visual aids help identify areas for improvement and foster communication among team members.