The three main principles of lean management are known as the “three Rs”: Reduce, Reuse, and Recycle.
Reduce: Lean management seeks to reduce waste by limiting the amount of resources used by an organization. This is achieved by identifying, eliminating, or streamlining processes that don’t add value to the product or service being offered. It also involves reducing the amount of product defects and inventory levels.
Reuse: Lean management promotes reusing resources in order to create the most efficient use of resources. This may include reusing materials between departments, sharing assets between divisions, or collaborating on projects to gain more insight into the efficiency of the current process being used.
Recycle: Lean management encourages the recycling of resources by re-evaluating existing technologies and extending the life of assets. This may involve re-manufacturing existing products, repairing existing products, or finding ways to use used materials in new products or services.
The goal of these three principles is to create a lean environment in which resources are used more efficiently, processes are streamlined, and waste is minimized. This can ultimately help an organization become more profitable and successful.
For more information on the three Rs of lean management, you can read this article: https://hbr.org/2015/08/the-3-rs-of-lean-management