Indirect, Asynchronous Event Management. We now seek another form of separate event manager service $E_{\text {asynch }}$. It is invoked by $I$, at the same time that $I$ invokes $A_i$. As for $E_{\text {synch }}$, we expect $E_{\text {asynch }}$ itself to discover the need for event notification. $E_{\text {asynch }}$ may handle this event notification service asynchronously, i.e., "out of step" with $A_i$ 's handling of the original service request. Thus, irrespective of the outcome of $E_{\text {asynch }}$ 's analysis of the service request, $A_i$ shall also perform the service request.
You are to suggest how user invocations of $I$ are to handle this form of event notification management via $E_{\text {asynch }}$.