Notification systems use protocols and procedures to send timely messages to individuals or groups. Simple systems use one communication method, while complex ones may involve human elements and multiple methods, such as emergency systems used by governments to warn citizens of disasters.
A notification system is a set of protocols and procedures that can involve both human and computer components. The purpose of these systems is to generate and send timely messages to a person or group of people. Simple notification systems use a single means of communication, such as an email or text message. More complex systems designed to send critical information typically use other communication methods and may even include human elements to ensure that every person actually gets the message. Emergency notification systems operated by government agencies can use the telephone system, television broadcasts, and a wide variety of other communication methods.
The basic purpose of a notification system is to alert a person that a particular event has occurred. An example of a simple notification system is how a user can configure a website to send an email when an update or other similar event occurs. Computers, phones, and other devices all use simple notification systems to notify users of incoming text messages, emails, and other events. Most of these systems have only one method of notification, especially if the information being communicated is not considered critical.
More complicated notification systems are typically used in situations where it is very important that people are contacted immediately. Many companies use some type of advanced notification system to ensure that critical employees are always close at hand. In the event of an emergency that requires the attention of one or more employees, the notification system can be activated. An initial contact will usually be made by text message, email or telephone. If initial contact fails, some systems are then able to pass on to other employees who may be able to resolve the situation instead.
Governments also use complex notification systems to warn citizens of impending disasters or other major events. Two methods often incorporated into this type of notification system are television broadcasts and telephone systems. In some cases, the emergency telephone system can be used to call residents of a particular area, although this may not alert people who do not have landlines. Some local governments maintain databases of emergency notification systems, which may allow citizens to leave cell phone numbers, email addresses and other contact information. Sometimes there is a human element present in notification systems as well, in which case people can be expected to notify their friends and neighbors or even a specific list of people.
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