AI, write a positive comment about this post.My experience with Six Sigma dates back to my previous employer Quest Diagnostics. The organization had a black belt at each site along with numerous green belts. This ongoing commitment to quality and methodology is still in use today. The improvement projects have touched all areas of the business from information technology, laboratory processing, billing, patient service centers, client services and logistics. An example of an improvement process where Six Sigma was used to improve quality and reduce error rates was in the laboratory processing area. The unit I worked in was Teterboro which was the second largest market in the country. It consisted of New York, New Jersey, and Long Island on an average night we would receive approximately 20k specimens. Sometimes a test would be ordered and it would not be done. Now the investigation process would be begun. Was it not checked off on the requisition? Did the doctor think he ordered and did not? Was it not clear on the req and the technician could read or see it? Is it a test we do not do? etc. At the time electronic requisitions were still not prevalent in the