In September 2012, our SARTS member Larry, who sits on the ASME Y14 Subcommittee on Reference Designators gave us a talk on a topic that is very useful for those who have to generate as well as understand technical documents, especially schematics.
Thanks for taking time, Larry.
12 Dec 2014:
I received a PoliteLetter from IEEE asking me to remove the abovementioned reference material. There was no need for me to do it as you will see that the Wordpress link has already been stoned 😦