Certified Business Analysis Professional (CBAP) Practice Test

The correct answer highlights the use of user stories as a technique for validating class diagrams against use cases. User stories encapsulate user requirements in a simple format that describes what the user wants to achieve. By aligning class diagrams with these stories, a business analyst can ensure that the objects and their relationships within the class diagram effectively support the functionalities defined in the use cases.

In this context, user stories serve as a bridge between user needs and system design, allowing the analyst to check that the attributes and methods defined in the class diagram correspond to the actions described in the use cases. This alignment is critical for confirming that the system architecture is capable of fulfilling user requirements as outlined in the use cases.

Other techniques, such as state diagrams, data flow diagrams, or sequence diagrams, serve different purposes. State diagrams depict the states and transitions of objects, providing insight into dynamic behavior. Data flow diagrams capture the flow of data within a system, while sequence diagrams illustrate interactions over time. While these techniques are valuable in their own right, they do not directly validate the relationships and functionalities defined in class diagrams against user-oriented requirements. Thus, user stories are the most fitting tool for this validation process.