"The focus of Opera group research is the design and deployment of open, large-scale, widely distributed systems. Two major thrusts are in the areas of asynchronous middleware (the Cambridge Event Architecture (CEA) and, more recently, Hermes) and an open, role-based, access control architecture for secure internetworking services (OASIS)."
"Our early work on ...(CEA) extended the then-predominant, object-oriented middleware (CORBA and Java) with a "publish, register, notify" paradigm. CEA events were typed to support the programming of distributed, event-based applications."
"Hermes is a publish/subscribe system where a network of event brokers decouples publishers and subscribers. This is in contrast with CEA's extensions to middleware for closely coupled components. Hermes uses XML for event transport while allowing standard programming languages for Java for typed-event programming in event systems."
"Ecco aims to be an event-based distributes system over peer-to-peer networks in a multi-event broker model that adapts to mobile computing environemnts and web services."
"Combining event-condition-action-rules, complex event composition and detection with event-based systems will provide a way to construct large distributed systems. - gotooriginally Posted to cep.weblogger.com by David Soul on 1/15/05; 5:49:14 PM in the CEP section.
