Best Format for Six Sigma Final Report

Keeping the audience in mind (a Vice President with or without knowledge of Six Sigma methodology details), I would start with the DMAIC process/briefing you use to "certify" as a green/black belt and synthethize it to meet the audience's needs. I would start out with a context setting moment for the VP if he needs it and then launch into the report/presentation.  I would report in a "veni, vidi, vici" format ("I came, I saw, I conquered") making sure the VP got the message on the ROI and how you are now armed with tools to conquer other company process problems.

Just   my 2 cents worth.

Bob H.