1. A method of event data management, the method comprising: receiving a first set of event data indicating computer tracked occurrences, the first set of event data including one or more events classified using local contexts, the local contexts indicating correspondence to a plurality of data flows; receiving a second set of event data indicating computer tracked occurrences, the second set of event data including one or more event data classified using the local contexts and using a global context, the global context indicating correspondence to a computer tracked transaction, the computer tracked transaction including one or more of the plurality of data flows; determining, using the local contexts, a first subset of event data from the first and second sets of event data, the first subset of event data corresponding to a first data flow of the plurality of data flows, and determining a second subset of event data from the first and second sets of event data, the second subset of event data corresponding to a second data flow of the plurality of data flows; determining, using the global context, a first event datum of the first subset and a second event datum of the second subset that corresponds to the computer tracked transaction; and establishing, in response to determining the first event datum and the second event datum that correspond to the computer tracked transaction, a global relationship between the first data flow and the second data flow, the global relationship indicating correspondence to the computer tracked transaction; receiving a third set of event data indicating computer tracked occurrences, the third set of event data including a third event datum classified, using a local context, as corresponding to the first data flow, the third event datum having a local bookend identifier, the local bookend identifier indicating an end to the first data flow of the plurality of data flows; adding, using the local context, the third event datum to the first subset of event data; and clearing, in response to determining that the third event datum includes the local bookend identifier, the first subset of event data from computer memory.