Chapter 9
Improving Flow
Lean Is Both Quality and Flow
As introduced earlier in the book, the core pillars of the Toyota Production System are jidoka, or quality at the source, and “just in time.” Just in time refers to the concept of always providing the right product or service as needed by the customer in the right quantity, at the right place, and at the right time. Quality and flow go hand in hand; one supports the other. For example, reducing defects in the discharge process means fewer delays and better patient flow. Improving flow by reducing delays leads to better quality and outcomes. For example, faster lab results means better and more timely medical decision-making and outcomes. Reducing delays in the emergency department means ...
