This research has enhanced a distributed, rule-based application 
integration environment with a composite event definition language (CEDL) 
and detection system. CEDL builds on existing composite event operators 
and selection modes, adding features to support the filtering of primitive 
and composite events. The filtering features includes basic parameter 
filtering on primitive and composite events, aggregate and quantifier filters 
on cumulative event parameters, and time filters for defining the lifetime of 
the composite event detection process. CEDL is supported by a composite 
event detection system that implements the filtering capabilities. This 
research contributes to the expression of more application-oriented events 
through the aggregation and correlation of distributed events.

This paper appeared in IEEE International Conference on Software 
Applications on the Internet (SAINT) 2006, Phoenix, AZ, January 2006.