In this section you will find how the application of these concepts and principles makes ICS work. Comprehensive resource management Common terminology is essential in any emergency management system, especially when diverse or other than first-response agencies are involved in the response. When agencies have slightly different meanings for terms, confusion and inefficiency can result. In ICS, major organizational functions, facilities, and units are predesignated and given titles. ICS terminology is standard and consistent among all of the agencies involved.
All common terminology applies to all organizational elements, position titles, and resources.
A modular organization develops from the top-down organizational structure at any incident. If needed, however, the ICS structure can consist of several layers. Integrated communications is a system that uses a common communications plan, standard operating procedures, clear text, common frequencies, and common terminology. Several communication networks may be established, depending on the size and complexity of the incident. Unity of command is the concept by which each person within an organization reports to only one designated person.