Which NIMS Management Characteristic involves using standardized names and definitions for major organizational functions and units?

The characteristic that involves using standardized names and definitions for major organizational functions and units is Unified Structure. This concept ensures that all entities involved in incident management have a shared understanding of roles and responsibilities, facilitating effective communication and coordination. By establishing a uniform approach to defining organizational functions, Unified Structure creates clarity and consistency, which is essential when multiple agencies and organizations collaborate during an incident.

The Unified Structure also promotes efficiency by reducing misunderstandings and ensuring everyone is on the same page regarding their tasks and authority levels. This is particularly important in chaotic situations where clear communication and understanding can significantly affect the outcome of incident response efforts.

In contrast, the other choices address different aspects of incident management. Common Technology refers to the use of standardized tools and systems, Command and Coordination pertains to the processes and systems that manage the response, and Manageable Span of Control relates to limiting the number of individuals one supervisor can effectively manage. Each of these plays its role in NIMS, but they do not specifically focus on the standardization of names and definitions as Unified Structure does.