The five pillars of lean manufacturing are value, value stream, flow, pull, and perfection. These principles focus on reducing waste while making production more efficient and predictable. 'Value' is defined from the customer’s perspective. It implies that the core focus should only be on what the customer is willing to pay. Anything else is considered waste.
The 'value stream' maps out every step involved in creating a product, helping identify delays, hurdles, or unnecessary tasks. 'Flow' ensures that production moves smoothly without interruptions, rework, or idle time. Instead of producing in bulk and hoping it sells, the 'pull' approach means manufacturing based on real demand.
Lastly, 'Perfection' is the ongoing goal of continuously improving processes rather than settling for current performance. In practice, it means regularly identifying inefficiencies and fixing them, even if the system is already working fine.