What is a user story?
A user story tells a short story from the viewpoint of the user to describe a system’s desired functionality. For this purpose, you just concentrate on the what and write your story in simple language so that all participants can understand, even those without a technical background. Because the user stories should form a bridge between development and customers. How exactly to implement the functionality is irrelevant for a user story. A user story is also flexible and adapts to new findings: It can be recorded roughly and filled with more details until it is detailed enough to be implemented. The goal of a user story is always to create added value for the customer.