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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. The term "war room" is also often used in politics to refer to teams of communications people who monitor and listen to the media and the public, respond to inquiries, and synthesize opinions to determine the best course of action.
 A command center enables an organization to function as designed, to perform day-to-day operations regardless of what is happening around it, in a manner in which no one realizes it is there but everyone knows who is in charge when there is trouble.
The purpose of the command center is to monitor the environment and be ready to act quickly and decisively to a threat or potential threat to that environment.
The command center is a place where order is maintained, especially if the world around it is falling apart. That is done by monitoring the environment and reacting to events, from the relatively harmless to a major crisis, using predefined procedures. A command center provides leadership and guidance to ensure service and order is maintained. It should never be viewed as a mere information center or help/service desk. It is not a place where switchboard operators help an organization’s members maintain routine communications with each other. Nor is it a dumping ground for tasks and projects that no one else wants to do or other departments lack the personnel to perform. The command center staff members are not data entry clerks, and they should not be filling out daily checklists or updating a person’s contact information.
There are many types of command centers. They include:
Data center management — oversees the central management and operating control for the computer systems that are the lifeline of most businesses, usually housed in data centers and large computer rooms.
Business application management — ensures applications that are critical to customers and businesses are always available and working as designed.
Civil management — oversees the central management and control of civil operational functions. Staff members in those centers monitor the metropolitan environment to ensure the safety of people and the proper operation of critical government services, adjusting services as required and ensuring proper constant movement.
Emergency (crisis) management — directs people, resources, and information, and controls events to avert a crisis/emergency and minimize/avoid impacts should an incident occur.
Types of command and control rooms and their responsibilities 
- Command Center (CC)
>Data center and computer system
- Network Operation Centers (NOC)
>Network equipment and activity
- Tactical Operation Centers (TOC)
>Military operations >Police and intelligence
- Security Operation Centers (SOC)
>Security agencies >Government agencies >Traffic management >CCTV
- Emergency Operation Centers (EOC)
- Combined Operation Centers (COS)
>Air traffic control >Oil and gas >Control rooms >Broadcast
- Audio Visual (AV)
>Simulation and training >Medical
- Social Media Command Center
>Monitoring, posting and responding on social media sites
Military and government
A command center is a central place for carrying out orders and for supervising tasks, also known as a headquarters, or HQ.
Common to every command center are three general activities: inputs, processes, and outputs. The inbound aspect is communications (usually intelligence and other field reports). Inbound elements are "sitreps" (situation reports of what is happening) and "progreps" (progress reports relative to a goal that has been set) from the field back to the command element.
The process aspect involves a command element that makes decisions about what should be done about the input data. In the US military, the command consists of a field - (Major to Colonel) or flag - (General) grade commissioned officer with one or more advisers. The outbound communications then delivers command decisions (i.e., operating orders) to the field elements.
Command centers should not be confused with the high-level military formation of a Command - as with any formation, Commands may be controlled from a command center, however not all formations controlled from a command centre are Commands.
During the Cold War, the Government of Canada undertook the construction of "Emergency Government Headquarters", to be used in the event of nuclear warfare or other large-scale disaster. Canada was generally allied with the United States for the duration of the war, was a founding member of NATO, allowed American cruise missiles to be tested in the far north, and flew sovereignty missions in the Arctic.
For these reasons, the country was often seen as being a potential target of the Soviets at the height of nuclear tensions in the 1960s. Extensive post-attack plans were drawn up for use in emergencies, and fallout shelters were built all across the country for use as command centres for governments of all levels, the Canadian Forces, and rescue personnel, such as fire services.
Different levels of command centres included:
- CEGF, Central Emergency Government Facility, located in Carp, Ontario, near the National Capital Region. Designed for use by senior federal politicians and civil servants.
- REGHQ, Regional Emergency Government Headquarters, of which there were seven, spread out across the country.
- MEGHQ, Municipal Emergency Government Headquarters
- ZEGHQ, Zone Emergency Government Headquarters, built within the basements of existing buildings, generally designed to hold around 70 staff.
- RU, Relocation Unit, or CRU, Central Relocation Unit. Often bunkers built as redundant backups to REGHQs and MEGHQs were given the RU designation.
A Command and Control Center is a specialized type of command center operated by a government or municipal agency 24 hours a day, 7 days a week. Various branches of the U.S Military such as the U.S Coast Guard and Navy have command and control centers.
They are also common in many large correctional facilities. A Command and Control Center operates as the agency's dispatch center, surveillance monitoring center, coordination office and alarm monitoring center all in one.
Command and control centers are not staffed by high-level officials but rather by highly skilled technical staff. When a serious incident occurs the staff will notify the agency's higher level officials.
In service businesses
A command center enables the real-time visibility and management of an entire service operation. Similar to an air traffic control center, a command center allows organizations to view the status of global service calls, service technicians, and service parts on a single screen. In addition, customer commitments or service level agreements (SLAs) that have been made can also be programmed into the command center and monitored to ensure all are met and customers are satisfied.
A command center is well suited for industries where coordinating field service (people, equipment, parts, and tools) is critical.
- Example: Intel's (TM) security Command Center
- Example: Dell's Enterprise Command Center
- Example: NASA's Mission Control Houston Command Center for Space Shuttle and ISS
War rooms can also be used for defining strategies, or driving business intelligence efforts.
In popular culture
- Command Center Handbook: Proactive IT Monitoring, by Abdul Jaludi Chapter one - What is a command center
- Command Center Handbook: Proactive IT Monitoring, by Abdul Jaludi Chapter one - Types of command and control rooms
- Mission Control Center
- War Room - method and commonsense, by Yves-Michel Marti Egideria