What is inheritance of Alerts and Alerting Rules?

What is Alerting Rules and Alerts inheritance? Q: Can you explain in more details inheritance of alerts and alerting rules? A: A number of parameters used to create monitors are inherited from other object types. The following inheritance rules are in effect (available from a node Alerting tab ) for Alerting Rules:

can be inherited from the monitor’s parent host
can be selected from a global list of named rules (a named rule can be used for any node)
can be set specifically for a given monitor (and can’t be used for any other node)

When you changes Alert or Alerting Rule the following inheritance rules are in effect:

if a named Alerting rule is changed, this affects all the nodes (monitors, hosts, monitor groups, etc) using this named rule
if a named Alert is changed, all the Alerting Rules that use this alert are affected immediately

These inheritance rules can be used to quickly apply mass change to a number of monitors. An example: create a named rule, assign it to a host let the monitor inherit the rule from it. In this case, if the specific named rule is changed, all the changes are immediately in effect for all the monitors that ‘received’ this rule from host they inherit alerting rule from.

What is inheritance of Alerts and Alerting Rules?