Complex Event Processing (“CEP”) is an emerging technology for making, monitoring, measuring, managing and maintaining enterprise information systems including: <> Business Activity Monitoring (“BAM”) <> Business Process Management (“BPM”) <> Enterprise Application Integration (“EAI”) <> Event-Driven Architectures (“EDA”) <> Network and business level Security <> Real time conformance to regulations, rules, policies and procedures. CEP embodies principles for creating information system applications that enable enterprises to keep pace with the vast amount of date and information flowing through their IT systems. The goal of CEP is to enable the data contained in the events flowing through all of the layers of the enterprise IT infrastructure to be discovered, transformed into information, understood in terms of its impact on high-level enterprise objectives and business processes, and then ideally acted upon in real-time, thereby reducing decision latencies and hopefully improving Economic Value Added (“EVA”). CEP proactively deals with events created by technologies such as RFID or flowing data streams such a financial market price reporting data or communication system log data. CEP employs techniques such as the detection of complex patterns of many events, event streams processing, event correlation and abstraction, event hierarchies, and relationships between events such as causality, membership, and perhaps most importantly timing. CEP can complement and contribute to other emerging technologies such as service oriented architecture (SOA), event driven architecture (EDA) and business process management (BPM).