What does PI in OSIsoft's 'PI System' stand for?

Question

What does PI in OSIsoft's 'PI System' stand for?

http://www.osisoft.com/resources/case_studies/case_studies.aspx

I can't tell if it stands for the symbol/number pi, or if it stands for a previous name for the technology, like 'Process Inteligence'. PI is too close to the more common BI to be just a coincidence.

Note - There are Channel9 videos that demonstrate how MS uses OSIsoft to monitor some operations. Links to the C9 videos are from the 'SQL 2008 R2' CEP pages. The SQL CEP features are called StreamInsight.

www.microsoft.com/sqlserver/2008/en/us/R2-complex-event.aspx

Answer 1

PI used to stand for "Plant Information". Now that the PI System suite of products does much more and is used in many different environments, PI is just "PI".