Use Cases - The Ultimate Guide …this guide describes how to apply use cases in an agile and scalable fashion. It builds on the current state of the art to present an evolution of the use-case technique that we call Use-Case 2.0. The goal is to provide you with a foundation to help you get the most out of your use cases; one that is not only applicable for small co-located agile teams but also large distributed teams, outsourcing, and complex multi-system developments.