An example of a usability issue is an adjacency error (clicking the wrong element).

An example of a usability issue is an adjacency error (clicking the wrong element).

• A. Adjacency error
• B. Data lag
• C. Network outage
• D. Inaccurate medical records

Answer: (A)

Usability issues arise when the interface design makes using the system harder or riskier. An adjacency error—clicking the wrong element because targets are placed too close together—directly shows a usability flaw in how the interface is laid out. When targets are too close, users can misselect, slow down workflows, and even trigger unsafe actions, highlighting the importance of clear spacing, appropriate hit targets, and forgiving design in clinical interfaces. The other options point to different problems: data lag concerns how quickly information updates or is retrieved, a network outage blocks access to the system, and inaccurate medical records reflect data integrity and safety issues—not how the user interacts with the interface.

Usability issues arise when the interface design makes using the system harder or riskier. An adjacency error—clicking the wrong element because targets are placed too close together—directly shows a usability flaw in how the interface is laid out. When targets are too close, users can misselect, slow down workflows, and even trigger unsafe actions, highlighting the importance of clear spacing, appropriate hit targets, and forgiving design in clinical interfaces.

The other options point to different problems: data lag concerns how quickly information updates or is retrieved, a network outage blocks access to the system, and inaccurate medical records reflect data integrity and safety issues—not how the user interacts with the interface.