The Object Discoveries node, listed under the Management Pack Objects node in the Operations Console Authoring pane, displays a list of all object discoveries in System Center Essentials 2010. You can right-click any of the object discoveries listed in the results pane to view its properties or to override it.
In Essentials 2010, object discoveries are used to find the specific objects on a network that need to be monitored. Because Management Pack developers do not know the specific objects that are in your network environment, they define only the type of objects that their Management Pack monitors. However, the developer also includes discovery objects so that, after the Management Pack is imported, the object discoveries find the specific objects on your network that are of the types monitored by the Management Pack.
The object discoveries can use the registry, WMI, scripts, OLE DB, LDAP, or even custom managed code to find objects on a network. If an object discovery finds objects on your network that you do not want to monitor, you can limit the object discoveries scope by using overrides.