Why are some organizations more productive than others? What’s below the surface? No one owns the definition of Operational Excellence. But this is how we see it - Operational Excellence is an umbrella concept including Lean, Agile, Design Thinking, Six Sigma, TPS, TPM, TQM, etc.
It’s not a matter of either/or. It's a fundamental attitude that encourages the constant development of operational excellence by using the best-suited concepts and methods given the nature of their processes and the nature of the customers' needs. There is no one-size-fits-all solution, but there are many tried-and-true experiences that can be adapted to new settings.