Most modern business management methodologies have roots in Toyota's approach to quality improvement and business optimization following World War II. Techniques included in what they called The Toyota Way have been borrowed, adapted, and rearranged into an approach known as Lean manufacturing. Because the framework works for many types of businesses, from healthcare to higher education, it is now often referred to as simply Lean.
Lean is not a prescription for running a business; instead, it is a set of ideas that provides structure to the fundamental belief that continuous improvement is the only way to successfully compete and deliver customer value for a profit.
Successful Lean organizations apply a set of strategies that help optimize resource utilization, reduce waste, and delight customers. They work best when used together, but each provides value even when used alone.