Software Requirements Using the Unified Process: A Practical Approach

Chapter 13. Use Case Realization by Means of Sequence Diagrams

We use sequence diagrams to realize use cases in the analysis model. Before we demonstrate the realization, we need to have a good understanding of sequence diagrams. Sequence diagrams are a type of interaction diagram. Collaboration diagrams are another type of interaction diagram. Although each of these types of interaction diagrams provides the same information, the focus of attention is different. Collaboration diagrams focus on the objects that work together to accomplish a given task or series of tasks. Sequence diagrams focus on the interaction of a given task or series of tasks ...