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.
The ICS features covered in this lesson form the basis for effective, team-based incident response at all levels. Federal response coordination entities, such as the Joint Field Office, adopt these ICS features in order to provide effective support to the on-scene incident management teams.