Processing - for building applications to filter, correlate, and process events in real time. SAP ESP - A low-latency, rapid development and deployment platform that allows processing multiple streams of data in real time SQLstream SQLstream's stream processing platform, s-Server, provides a relational stream computing platform for analyzing large volumes of service, sensor and machine and log file data in real-time. TIBCO BusinessEvents & Streambase - CEP platform and High Performance Low Latency Event Stream Processing WebSphere Business Events Apache Flink Open-source distributed stream processing framework with a CEP API for Java and Scala. Apache Storm Free and open source distributed realtime computation system. Storm processes unbounded streams of data in realtime. References Information systems Cognition Events (computing) Process (computing)