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.
1.3.2 Incident Command System. The ICS provides guidance for how to organize assets to respond to an incident (system description) and processes to manage the response through its successive stages (concept of operations).