Described are techniques for determining noteworthy events. A client performs a first call to a first routine having a first interface. The first interface includes a first set of input parameters specifying noteworthiness criteria indicating which event occurrences in a sequence of event occurrences are noteworthy. The client performs a second call to a second routine having a second interface to record an event occurrence of the sequence. The second routine perform processing returning information to the client including an indicator value denoting whether the event occurrence is noteworthy. In response to receiving the indicator value, the client may perform an action if the indicator value denotes that the event occurrence is noteworthy.