Abstract: The invention relates to a method for modeling a device in a topology including defining a managed object corresponding to the device, defining a managed resource using the managed object, and creating a node in the topology, wherein creating the node comprises associating the node with the managed resource.

Abstract: In a computer network system, a service monitoring and measurement system is described having a plurality of service transaction modules to enable a user to remotely or locally monitor and/or measure the availability of network services. The service measurement and monitor includes logic to monitor and manage network services by allowing a user to request service availability by periodically sending service packets from the transaction modules to the service server. The service measurement and monitor system advantageously ensures status state change in a particular service one hierarchy level of the host device being monitored is retained and communicated to other hierarchy levels as the user measures service availability on the network.