On Event Processing Agents implies  a “new” event processing reference architecture with terms like,   (1) simple event processing agents for filtering and routing, (2)  mediated event processing agents for event enrichment, transformation, validation, (3) complex event processing agents for pattern detection, and (4) intelligent event processing agents for prediction, decisions.

Frankly, while I generally agree with the concepts, I think the terms in On Event Processing Agents tend to add to the confusion because these concepts in On Event Processing Agents are following, almost exactly, the same reference architecture (and terms) for MSDF, illustrated again below to aid the reader.