Basically there are two different approaches to monitor applications' availability and response time, one is real end user transactions monitoring, and the other is proactive monitoring.

Wireless sensor network nodes can collaborate on real-time monitoring, such as tasks, and the collected mass data processing, and then sent through a wireless network in a timely manner to the user.

The user may carry the mobile unit along with, which real-time monitor user's physiological data, when examines to exceptionally, it automatically dials the monitoring center;