Do you have in your process a “Wait” state? Example of a “Wait” state is “Ready for Product Owner Acceptance”. Another example is “Ready for Test”.
Think of something similar in your system or process… a state (or step) that does nothing of value — a non-value-add (NVA) step.
If /when you find this step, find out how long, on average, this step is.
For instance… take the earlier example, “Ready for Product Owner Acceptance”… find out how long on average this step is… this is an NVA… if it is a necessary step, then minimize it…if it is not a necessary step, then eliminate it.
The goal is to have Value-add steps without Non-Value-Add steps (like “Wait” states) that interrupt the flow of value.
One of the wastes in Lean is “Waiting”. Learn to see this waste… and remove it to improve Flow Efficiency, reduce Lead Time, realize Value soonest.