SAS/QC 12.1 includes three new procedures for multivariate process monitoring, as well as enhancements to the CAPABILITY, PARETO, and RELIABILITY procedures.

In previous years, SAS/QC software was updated only with new releases of Base SAS software, but this is no longer the case. This means that SAS/QC software can be released to customers when enhancements are ready, and the goal is to update SAS/QC every 12 to 18 months. To mark this newfound independence, the release numbering scheme for SAS/QC changed starting with SAS/QC 12.1. This new numbering scheme will be maintained when new versions of Base SAS and SAS/QC are shipped at the same time.

SAS/QC 12.3 is a maintenance release. No new features have been added. The information in this book applies to SAS/QC 12.1 and SAS/QC 12.3.