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

The use of communications and information systems that are familiar to users is part of the key principle “Reliability, Scalability, and Portability.”

Reliability, Scalability  and Portability emphasizes that systems should be reliable and scalable to function in any type of incident and should be regularly used to ensure they are familiar and acceptable to users, adaptable to new technology, and reliable in any situation.

Incident personnel highly value the principle of “Reliability, Scalability, and Portability” for its assurance that communication tools will work seamlessly, especially during critical incidents, highlighting the importance of reliability in high-stress environments.

Another essential aspect of  “Reliability, Scalability, and Portability” is its emphasis on adaptability, allowing communication systems to be expanded or modified to meet the unique demands of each incident, demonstrating the principal’s role in ensuring effective and efficient incident management across various scales and complexities.

Source: https://training.fema.gov/emiweb/is/is700b/handouts/national_incident_management%20system_third%20edition_october_2017.pdf