Work-In-Process refers to the number of items currently waiting to be worked on in a process. Work-In-Process can refer to the number of items in an inbox or queue. Often referred to as “inventory” in manufacturing processes.

For a better understanding of Work-In-Process and an overview of Lean Six Sigma, check out our Free Lean Six Sigma Yellow Belt Training, Green Belt Training or Lean Training.

Elisabeth Swan

Elisabeth is a Managing Partner & Executive Advisor at GoLeanSixSigma.com. For over 25 years, she's helped leading organizations like Amazon, Charles Schwab and Starwood Hotels & Resorts build problem-solving muscles with Lean Six Sigma to achieve their goals.