Pop-up windows and changes in system status can also trigger this rapid shifting.

O'Brien nodded, but Sisko was pleased to see that he kept his eyes on the station controls, automatically checking system status.

Visibility of system status: The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.

For five minutes he checked the system status and listed a few mail files.

After orbital injection, the spacecraft will be contacted periodically to obtain system status and to determine trajectory.

They key to understanding this behavior, and the mystery, is her third system: status.

Responsiveness: the interface provides enough feedback information about the system status and the task completion.

As changes are inevitably made to the requirements and design, they must be approved and documented, creating an accurate record of the system status.

Fully configurable user events can be defined to execute specific actions based on system status.

They're only a driver model away from operating system status.