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IBM Proactive Technology Online is an open source complex event processing engine developed at IBM Research - Haifa. It provides language primitives for defining, submitting, and executing event processing networks. The goal of the system is to respond to raw events and identify meaningful events within contexts. The system comes with a set of built-in operators (such as sequence, all, etc.) for determining CEP patterns. It also has extendable APIs for adding additional custom operators. The system comes with existing source/sink adapters, allowing it to extract raw events from files or pull them from RESTful services. It also provides extendable APIs for adding more adapter types. 

The repository includes: 
	-The standalone J2SE version zip, which includes the source 	code, a samples directory with the IBM Proactive Technology Online’s definition file, and a 	directory with the system’s user guide explaining the language 	semantics and use of the authoring tool.

	-A zip file with the IBM Proactive Technology Online’s authoring tool - a web application 	used 	to build and verify the application’s definition files.

	-A zip file with IBM Proactive Technology Online on a web server. This is a version of the engine adapted to run on a web server. It allows users to push 	RESTful events to the engine in addition to pulling 
	RESTful events option provided by the REST adapter. This version also provides 	REST APIs for managing the engine’s instance lifecycle, and 	managing the definition repository.
	For instructions on how to configure and install IBM Proactive Technology Online on 	Tomcat, see: https://forge.fi-	ware.org/plugins/mediawiki/wiki/fiware/index.php/CEP_GE_-	_IBM_Proactive_Technology_Online_Installation_and_Administration_Guide