Lean methodologies focus on maximizing value while minimizing waste in processes. Originating from the Toyota Production System, these principles aim to improve efficiency by identifying and eliminating non-value-added activities. This approach encourages continuous improvement and fosters a culture of problem-solving among team members. Key concepts of Lean include value stream mapping, which visualizes the flow of materials and information, and the 5S system, which organizes the workplace for better efficiency. By streamlining operations, organizations can enhance productivity, reduce costs, and deliver higher quality products or services to their customers.