In which scenario would you create a high-fidelity prototype?

Creating a high-fidelity prototype is most appropriate when the goal is to simulate user interactions more accurately. High-fidelity prototypes are characterized by their detail and functionality, often closely resembling the final product in terms of interface design, interactivity, and user experience. This level of fidelity allows users and stakeholders to engage with the prototype as they would with the completed application, providing valuable insights into usability and interaction patterns.

In contrast, gathering initial feedback on ideas typically requires lower-fidelity prototypes, which focus more on concepts and basic functionalities rather than detailed interactions. Sketching out rough layouts aligns with early-stage ideation and brainstorming, also favoring lower-fidelity outputs. Visualizing the app's architecture is more aligned with backend development planning and technical documentation, which does not necessitate an interactive prototype. Thus, it is the accurate simulation of user interactions in a high-fidelity prototype that stands out as the primary reason for its creation in this context.