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.
Specialty Summary. Manages and performs activities within command posts (CP), operations centers, rescue coordination centers, and command centers. Provides command, control, communications, and information support. Receives and relays command and control (C2) instructions and records, and collects, processes, and submits manual and automated data products.