What technique helps in identifying how much time is spent on genuine work and dead time?

The technique that effectively identifies how much time is spent on genuine work versus dead time is the Value Time Percentage. This methodology involves analyzing the time spent on activities that add value to a process compared to the total time taken, which includes both value-adding and non-value-adding activities. By focusing on the ratio of value-adding time to total time, organizations can quantify efficiency and uncover areas where waste occurs.

Value Time Percentage offers a clear insight into operational performance, allowing businesses to streamline processes, improve productivity, and enhance overall efficiency. This technique is particularly valuable in Lean management, where the goal is to maximize value while minimizing waste.

The other techniques, while beneficial in different contexts, do not specifically provide a mechanism for distinguishing between value-added and non-value-added time in a process. Scenario Analysis is useful for examining potential outcomes based on varying information. A Cause and Effect Diagram (Ishikawa) assists in identifying root causes of problems. The 5 Why's technique is helpful in investigating the causes of defects or issues but does not specifically analyze time spent in processes.