Actors that participate in the use case are called what?

Actors that participate in the use case are called what?

• A. Primary actors
• B. Secondary actors
• C. Stakeholders
• D. End users

Answer: (B)

In use-case modeling, actors are roles that interact with the system. They’re split into primary actors and secondary actors. Primary actors are the ones who initiate the use case to achieve a goal. Secondary actors participate to help the use case succeed by providing a service, information, or a capability, but they don’t start the interaction themselves. The term that best fits “actors that participate in the use case” without initiating it is secondary actors, since they are involved in the flow to support the goal. For example, in an online ordering use case, the customer is a primary actor who initiates the order. The payment gateway and the shipping service are secondary actors because they participate by processing payment and arranging delivery, respectively, to help complete the use case. Stakeholders are a broader group with an interest in the system, not all of whom interact with the use case, and end users are typically the people who use the system, often as primary actors.

In use-case modeling, actors are roles that interact with the system. They’re split into primary actors and secondary actors. Primary actors are the ones who initiate the use case to achieve a goal. Secondary actors participate to help the use case succeed by providing a service, information, or a capability, but they don’t start the interaction themselves. The term that best fits “actors that participate in the use case” without initiating it is secondary actors, since they are involved in the flow to support the goal.

For example, in an online ordering use case, the customer is a primary actor who initiates the order. The payment gateway and the shipping service are secondary actors because they participate by processing payment and arranging delivery, respectively, to help complete the use case. Stakeholders are a broader group with an interest in the system, not all of whom interact with the use case, and end users are typically the people who use the system, often as primary actors.