System status and availability best practice

1. Why is visibility of system status important?
2. What is a system status?

Why is visibility of system status important?

It serves to keep users informed of the current status and to allow them to steer the interaction in the right direction, without wasting effort. Such feedback can be as simple as a change of color once the user has clicked on a button, or a progress indicator when a process needs a little longer to finish.

What is a system status?

System Status is an application used for monitoring hardware and software state of your iOS device. All the information it offers is split into seven pages: Overview, Work Time, Disk Details, Routing Table, Memory, Details and About.