1. A storage medium readable by a machine, tangible embodying a event notification management program of instructions executable by the machine to make the machine as a processing apparatus controlling notification to a predetermined system, of information about an event occurred within a system, the information being acquired from notification data provided from a component within the system, the processing apparatus comprising a format converting unit, a first processing unit and a second processing unit, the format converting unit including a file storing a plurality of regular expression syntaxes associated with a plurality of notification data, and having functions of: selecting a head regular expression syntax corresponding to head notification data provided from the component, from the plurality of regular expression syntaxes stored in the file; judging that the head notification data is one of a series of notification data that represent a single event occurred within the system and are provided separately a plural number of times from the component within the system upon occurrence of the single event if the selected head regular expression syntax is associated by chain information with a continuous regular expression syntax in the plurality of regular expression syntaxes stored in the file; storing the head notification data in a temporary save area when judging that the head notification data is one of the series of notification data; joining the head notification data stored in the temporary save area and continuous notification data provided from the component following the head notification data when the continuous regular expression syntax corresponds to the continuous notification data provided from the component; generating the series of notification data by repeating the joining process; and converting the series of notification data into a predetermined format based on a selecting process of selecting a regular expression syntax corresponding to the series of notification data and an extracting process of extracting unique part information of the series of notification data; the first processing unit having functions of: determining a content of a notification process corresponding to the event represented by the converted series of notification data on the basis of management information in which event identifying information specifying the event is associated with the content of the notification process; notifying the second processing unit of the event when the determined content of the notification process indicates a second-order process; and instructing a notification processing unit corresponding to the event to notify of information about the event when the determined content of the notification process does not indicate the second-order process; and the second processing unit having functions of: retaining an occurrence situation including an occurrence count and an occurrence time regarding the event notified from the first processing unit when receiving the notified event; and instructing a notification processing unit corresponding to the notified event to notify of information about the notified event if the retained occurrence situation regarding the notified event satisfies a notification condition corresponding to the notified event.