Appendix

Case Studies

This appendix contains four cases. With each of these, perform the same steps that would be performed if you were working on a Lean project in an organization:

  1. Determine the metrics that should be included in a project charter for improvement of the process described in each case.
  2. Draw a value stream map, and then calculate these quantities:

    a. Lead time for each process step

    b. Total process lead time

    c. Total value-added time

    d. Total non-value-added time

    e. Value-added ratio (VAR)

  3. Find the waste in the process.
  4. Devise improvements to reduce the waste and improve the metrics determined in the first step.
  5. Draw the value stream map of the process as if the improvements in the previous step had been made.
  6. Create a list, ...

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