51. The computer system of claim 50, wherein the first graphical program comprises a first plurality of objects and wherein the second graphical program comprises a second plurality of objects; wherein said CPU is operable to match said first plurality of objects of said first graphical program with said second plurality of objects of said second graphical program to determine differences between said first graphical program and said second graphical program.
53. The computer system of claim 51, wherein said objects include controls and indicators for displaying data.