Posted by Sten Westgard, MS
[Full disclosure: several years ago, Westgard QC consulted with Thermo Fisher MAS to recommend features on their next revision of their QC software. We also continue to provide training and education services to their customers.]
As much as people enjoy using our free downloadable spreadsheets to calculate Sigma-metrics and generate Sigma Method Decision Charts, there is a better way.
Rather than enter everything by hand, you could have a software program automatically gather the data and do the calculation work for you.
Witness the latest version of LabLink xL[tm] from Thermo Fisher. Sigma-metric graphs are now a standard feature:
Now, in the same program that you handle your QC and your peer group comparison, you can view your Sigma-metrics. It's taken a long time to get these tools into software, we're delighted that vendors (other than us) are adding these features to their offerings.
[P.S. to other software vendors, the Sigma-metric is not patented, trademarked, or copyrighted. It is free to add to your feature list.]
Again, to see more about the Sigma-metric offerings from LabLink xL, visit their website.