In business analysis, primary and secondary actors are crucial elements when modeling use cases. A primary actor is the one who initiates the interaction with the system to achieve a specific business goal for example, a customer placing an order through an e commerce application. A secondary actor, on the other hand, supports the system in fulfilling that request. This could be a payment gateway, database, or third-party verification service. Identifying both types of actors helps Business Analysts understand system dependencies and define clear, functional requirements. These foundational concepts are thoroughly covered in online classes for business analyst, where learners gain practical skills through real-world scenarios and guided use case modeling exercises.