Apama Event Programming Language (EPL) is the native language of the Apama event correlator. You use EPL to write programs that process events in the correlator. Apama EPL Reference is a companion to the Apama Studio EPL tutorials and to the user guide, Developing Apama Applications in EPL. Use the tutorials and Developing Apama Applications in EPL to learn how to write programs in EPL. Use this reference to answer questions and obtain complete details about a particular construct. EPL is the new name for MonitorScript.