Using the Lean Measures slides (from the textbook) below, the QT for step 3, where the cycle time is 45 minutes and considering you have 2 units in WIP before the stop should be calculated as... Lean Measures There are a number of Lean Measures that can be used to assess the lean performance of a process Processing Time (PT) -The lead me of an individual process stop Queve Time (0)-The reben process LPT N Step 1 Value Add Step .. Step 2 Value Add Step 3 Value Add Nor Value Add Value Add O Work in Process IP) - The number of products or service wating Total Low Time-The m e for a product or service to pass the whole process from a Total Value A Time - The processing time of the Value Add 1.00 minutes is the QT 45 minutes por one unit only is the OT 3 90 minutes plus any additional waiting time 95 minutes