Ivar Jacobson And Alistair Cockburn have a great article on “Use Cases are Essential”. You can read it at https://dl.acm.org/doi/pdf/10.1145/3631182. Its summary says, “Use cases provide a proven method to capture and explain the requirements of a system in a concise and easily understood format”. I have incorporated use cases in my ATDD/BDD workshops for many years. In this article, I’ll show one transformation of the use case they used in their paper into the detailed ATDD/BDD scenarios. 

The PDF is here

The HTML version is here.