Writing project requirements can be a challenging task for any project team. One way to get the job done is to build use case diagrams and write use case descriptions. Activity diagrams are then used to show the sequence of events. Use cases model and describe the capabilities your users need in a straightforward way. In Writing Project Requirements with Use Cases, Susan Weese guides you through the components of use case diagrams and descriptions, building brief, casual and fully dressed use cases to document project requirements.