SEDA: An Architecture for Well-Conditioned, Scalable Internet Services
"SEDA is an acronym for staged event-driven architecture, and decomposes a complex, event-driven application into a set of stages connected by queues."
I understand that it's an architecture and that there are many implementations of SEDA (see the Wikipedia article). What is a "stage"? Can someone give a thorough high-level summary of a staged event-driven architecture, and how it differs from traditional (unstaged?) event driven architectures?