Use of communications and information systems that are familiar to users is a part of which key principle?

The emphasis on using communications and information systems familiar to users aligns with the principle of interoperability. Interoperability ensures that different systems, agencies, and organizations can work together effectively during incidents. By using familiar communication tools and systems, users can operate more efficiently and respond to situations more effectively. This familiarity helps minimize confusion and enhances the overall coordination among responding entities.

When responders use known systems, it decreases the learning curve in stressful situations, leading to faster and more effective communication. Interoperability facilitates better information sharing and collaboration, which is essential during emergency management and response efforts. Overall, this principle is critical in ensuring that all involved parties can seamlessly exchange information and maintain situational awareness during an emergency.