What describes a story of how one specific actor uses a system to accomplish (or fail to accomplish) the goal?

• A. Mind map
• B. Use case scenario
• C. TAR
• D. W3C Guidelines

Answer: (B)

Focusing on how a single person uses a system to achieve a goal, including what happens if they can’t reach it, this is exactly what a use case scenario captures. It presents a narrative from start to finish: the actor begins a task, the system responds with concrete steps, and there are clear outcomes—success or failure—along with any alternate paths. This kind of story helps designers understand real tasks, specify how the system should behave in different situations, and validate requirements. A mind map, in contrast, lays out ideas and relationships, not a sequence of user steps interacting with a system. W3C Guidelines are standards for web technologies, and TAR isn’t the framework used to model how a user engages with a system to reach a goal. So the use case scenario is the best fit.