What system helps facilitate one-way message broadcasting to groups of people?

The Emergency Address Notification System is specifically designed to provide one-way messaging to large groups in a timely and efficient manner, particularly in situations that require urgent communication such as emergencies or public safety notifications. This system typically allows authorities or organizations to disseminate critical information quickly, ensuring that community members receive important updates or alerts directly to their devices or via public broadcast channels.

The other systems, while related to messaging and communication, serve different purposes. An Alert Notification System may encompass a broader range of notifications not limited to emergencies, while a Public Announcement System focuses on transmitting messages through speakers in a localized area. A Message Dissemination Network suggests a more general platform for distributing information but does not necessarily indicate the one-way urgency that characterizes the Emergency Address Notification System. Thus, the chosen answer reflects the specific functionality needed for critical one-way communication in emergency situations.