is mapping used for linking two program's variables. I mean if i have program A with variable a1, and program B with variable a1. How do i know that the change of variable in program A also occurs in program B and the change of variable in program B also occurs in program A. Is this what is mapping used for ? If yes, what is the easyest way to "map" variables? What is the moust efficient way to write this tipe of program?
Thanks for your time and help