What does a scenarios prototype represent?

A scenarios prototype primarily represents the performance of a system based on events. This type of prototype is focused on illustrating how users interact with a system through various scenarios, which are defined sequences of actions taken by the user and responses from the system.

By depicting these interactions, a scenarios prototype allows designers and stakeholders to visualize the functional aspects of the design, understand user workflow, and identify potential issues in usability or behavior during real-life use. It emphasizes user tasks and how the system is expected to react to different inputs and conditions, thus providing a valuable tool in the design process to simulate user experiences and refine system performance.

While visual representation of user stories, design specifications, and emotional responses are important in their contexts, they do not directly capture the dynamic interactions and event-driven performance that a scenarios prototype focuses on. This makes the choice that aligns with understanding system behavior in context the most appropriate one.