A closed beta is a limited release where only those who have been given access can test the software while an open beta or public beta is a free (as in liberty) release that allows anyone to download and try it out.
The Incident Command System (ICS) is a systematic tool used for the command, control, and coordination of an emergency response. ICS allows agencies to work together using common terminology and operating procedures for controlling personnel, facilities, equipment, and communications at a single incident scene.
Incident Command System Diagram - Text Version. The Incident Command System (ICS) is used by public agencies to manage emergencies. ICS can be used by businesses to work together with public agencies during emergencies.