You are creating a model for your requirements. Which model type categorizes and describes the people who directly interact with a solution?

The Rules model type describes business rules, constraints, and policies that govern behavior, not the people who interact with a solution.

In business analysis modeling, user classes, profiles, or roles is the model type that identifies and describes the distinct groups of stakeholders who will directly use or interact with a solution. This model captures characteristics such as goals, frequency of use, and interaction patterns for each user group. It is a people-focused model distinct from models that describe rules, concepts, or system triggers.

The Concepts and Relationships model (such as a domain model or glossary) describes key business entities and how they relate to one another, not the human actors involved.

The Events model type describes external triggers - things that happen in the environment that cause the system or solution to respond - not the people using the solution.