The purpose of this paper is to enhance the possibility of making a good decision in complex decision situations concerning localisation of the most suitable physical position for an activity or a building. This will be accomplished by integration of the three procedures, CFD-Tool (Continuous Fuzzy Decision Management Tool), the MAD-Tool (Multi-Actor Decision Management Tool) and the CSL-Tool (Cross System Level Decision Tool), Where all three methods using a fuzzy approach. The result is the FAS procedure, a procedure that handles the problems mentioned above with a fuzzy approach. The FAS-procedure is also the starting point of a computer based decision support for physical planning