While Golfman's points are correct, my experiences make me believe that comingling actions in an area (this machine uses the IATF process while the one physically next to it does not would create more work and take more resources keeping things straight than would physically grouping the process/equipment/people in a clearly identified area.
Indeed it is process, not site...but most people think in physical areas. Just my recommendation, not a requirement.
Indeed it is process, not site...but most people think in physical areas. Just my recommendation, not a requirement.