What is the term for a chain of command in an organization that specifies areas of responsibility?

The correct term for a chain of command in an organization that specifies areas of responsibility is "organizational structure." This concept refers to the way in which various roles, responsibilities, and authority are arranged within an organization. An effective organizational structure allows for clear communication, delineation of duties, and a better understanding of who is accountable for specific tasks or decisions.

In an organizational structure, roles can be arranged in a variety of ways, such as hierarchically or functionally, ensuring that all employees understand their positions within the organization and the relationships between different team members. This clarity is essential for the smooth operation of any organization, as it facilitates coordination and enhances overall productivity.

Although the other terms might also relate to aspects of how organizations function, they do not capture the comprehensive framework that defines relationships, roles, and responsibilities in the same way. For example, "operational hierarchy" tends to focus more on the levels of authority rather than the full scope of organizational roles. "Management system" generally refers to the processes and practices for running an organization, while "leadership framework" is more about the philosophies and styles of leadership within the organizational context rather than its structural layout.