Join Points

Join points are specific moments in a program's execution where additional behavior, such as logging or security checks, can be inserted without changing the core code. Think of them as strategic hooks or decision points in the program’s flow. This concept is central to aspect-oriented programming, allowing developers to separately manage cross-cutting concerns like debugging or access control at these designated points. By defining join points, developers can enhance or modify program behavior efficiently and modularly, improving maintainability and flexibility in complex software systems.