*2.1.2 The eight wastes*

According to lean philosophy, the non-needed (not-adding value) activities are considered a waste. These are the following:


The main wastes were seven. Skills is an new addition.

Lean is much depended on the tools and methodologies that it utilizes. Some lean strategies that seem more successive for the concept and can be implemented in many different ways (e.g. merged), are [11]:

