Abstract: A management system for controlling a layout of physical and logical resources, the system including manipulation tools for manipulating physical and logical data flowing between computers and the resources, the manipulation tools including: at least two characters for each of the resources; at least two servicing-items, each for handling one character of the at least two characters, thereby at least one of the resources is serviced by the at least two servicing-items; each of the at least two servicing-items delivers logic events of the logic events regarding the one character handled thereby of the at least one of the resources being serviced by the at least two servicing-items, to the other servicing-item not handling that character.