Can you explain the differences between Interactor and UseCase in application architecture?

In application architecture, especially in the context of Android, Interactor and UseCase are often used to describe business logic, but they can have different emphases:

• UseCase is a specific usage scenario of the application, describing a single business operation (for example, "get a list of users" or "perform a payment"). UseCase focuses on what exactly needs to be done.

• Interactor is an implementation of the UseCase, a class that contains the logic to execute this scenario. The Interactor interacts with repositories, services, and other layers to implement the business logic.

Simply put, a UseCase is a concept or interface, and an Interactor is a concrete implementation of that concept. In some architectures, these terms can be used interchangeably, but separation helps better structure the code and separate the task description from its implementation.