Simple, consistent layer model representation depicts the functioning of different server hardware and operating systems. By hiding the complexity of the underlying environment, they make monitoring simple. Even non-experts can use the tool for monitoring and troubleshooting servers.
Layer models facilitate problem demarcation. Know if the problem is in the hardware, operating system, network or application layers and get the right experts involved in troubleshooting.
Unified and consistent interface for all server hardware and OS ensures short learning curve for administrators.