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.
A command center or command centre (often called a war room) is any place that is used to provide centralized command for some purpose. While frequently considered to be a military facility, these can be used in many other cases by governments or businesses.