Value-Added Steps are the meaningful portions of your process that directly contribute value for the client.
A good way to tell if a process step is value-added or not is to see if a client would pay for it. A value-added step is the direct opposite of one of the classic wastes.
Remember, it goes beyond reducing WIP. Being able to take needless work out of the system is more important than being able to put more work into the system. To do that, you need to know what matters to the achievement of the business objectives, whether it’s projects, operations, strategy, compliance with laws and regulations, security, or whatever.