Gregory K. McMillan, CAP, is a retired Senior Fellow from Solutia and Monsanto where he worked in engineering technology on process control improvement. Greg was also an affiliate professor for Washington University in Saint Louis. Presently, Greg is a principal consultant at CDI Process & Industrial working at Emerson Process Management in DeltaV R&D. Greg is an ISA Fellow and received the ISA “Kermit Fischer Environmental” award for pH control in 1991, the Control Magazine “Engineer of the Year” award for the Process Industry in 1994, was inducted into the Control “Process Automation Hall of Fame” in 2001, honored by InTech Magazine in 2003 as one of the 50 all time most influential innovators in automation, and received an ISA Life Achievement Award in 2010.