Tarantoga
Lightweight Event Management System (for Monitoring-Events and more)
...It relies on MongoDB to store the events and Perl as rule programming language. GUI and backend are seperate tools that communicate only via the MongoDB. Tarantoga understands EIF, so you can send events with "postemsg", "msend -e", and the tarantoga tool tsend. Via EIF, you can also connect other element managers, or TSM or .... Connect Nagios, Zabbix, OpenSMART, etc. with tsend as notification action. An SNMP adapter is not yet included but can be added easily.