The Lean concept focuses on add value and should eliminate wastage.
Lean working results in less time loss and more focus on quality, customers and employees.
In practice, problems are usually solved as they occur. The lean principle aims to proactive handling.
It is also consistent with the principle of 'less is more'.

By simplifying processes we can focus more on the essentials. Basically the aim is to avoid non conformity.
It is the replacement of non- added value activities, by applications with additional added value.
Lean is not intended as a purely individual action. Lean must run through the entire organization.
So it becomes a body of thought.