In today? World, and data services are integrated in ever new constellations, requiring the integration easy, flexible and scalable autonomous, heterogeneous components into complex systems at any time. Event-based architecture inherently separate system components. They cover the full spectrum of topics, ranging from treatment of a suitable local events and distributed forwarding algorithms, through a more practical discussion on issues of software engineering who are appointed by the event-based style, to the presentation of art-of-the-subject research in event-based systems, such as composite event detection and security. In addition, they demonstrate the power of event-based architectures in modern system design, thus encouraging professionals to take advantage of this technique in the next generation applications such as large-scale distributed information dissemination, network monitoring, enterprise application integration, or mobile systems.