Which Nielsen usability heuristic addresses the need for immediate feedback about system status?

• A. Visibility of system status
• B. Match between system and the real world
• C. Aesthetic and minimalist design
• D. Help and documentation

Answer: (A)

Immediate feedback about system status is essential because users need to know that something is happening and roughly how long it will take. This is exactly what the visibility of system status heuristic calls for: the interface should continuously keep users informed about ongoing actions, results, and the system’s state through timely cues like progress bars, spinners, or status messages. When you see a spinner during a save or a progress bar while uploading, you understand that the system is working and how much of the task remains, which reduces uncertainty and boosts trust and control.

Other heuristics focus on different concerns. Using language that matches real-world concepts helps users understand the system, but it doesn’t specifically ensure ongoing status updates. Keeping the design minimalist aims to reduce clutter, which is important, but it doesn’t guarantee that users receive feedback about what’s happening. Providing help and documentation is about guidance when needed, not real-time status during actions. So, the option that directly addresses immediate feedback about what the system is doing is the one that fits best.