Lean Six Sigma Black Belt or Green Belt in tech writing

[Peter Neilson]

Mary Bartels rhote:
> Has anyone become Six Sigma (lean or otherwise) certified as a green belt or
> black belt in tech writing?  Is there such a thing?  I will be working on a
> project in which several business analysts are working on their green belt
> certification in financial management and much is being made of this. It
> seems like this certification is becoming more valued; I attended a business
> conference last year and several of the presentations focused on the lean six
> sigma process.  I am curious about how it applies to tech comm.

The definitive work on Six Sigma was written, perhaps unwittingly, by H. 
C. Andersen.

Additionally, Google for ["six sigma" hoax] and check out the entry for
"Quality Mailbag: WRONG ON SIGMA - Archives - Quality"

It's a letter from David C. Crosby, the well-known quality guru.