Tim Bass
08-05-2008 01:46 AM
In* CEP as a Discipline,* David Luckham wrote:*

“Actually, it is fair to say that some of CEP can be found in other disciplines. Event processing has been going on in one form or another, for the past 50 years. Simulation, Networking, Active DBs, Middleware.

{ …. }

CEP has only just begun. The foundations are unexplored. Its an open field of research issues.”

Actually, on slide 12 of this presentation from 2006 Processing Patterns for PredictiveBusiness, we show that the foundations for complex event processing have been in place for many years and in many disciplines such as multisensor data fusion, control theory, sensor management, planning, correlation, estimation, tracking, information fusion, data fusion, data mining and more.

One obvious problem (or at least obvious to many of us) with the current group think marketing CEP is that many have ignored the established foundations for event processing and complex event processing that have been mature for many decades. It is not very efficient (nor good for customers) to pick a phrase, or concept, like “CEP” and ignore the relevant mulitiple disciplines that have been used to solve complex classes of distributed event processing problems for decades.

Therefore, “CEP has only begun” is only true for those who have ‘drank the*CEP koolaid” and do not understand (yet) that they are “reinventing the event processing wheel” and ignoring (by accident or purposely, I have no idea of the motives) the prior-art and/or selectively picking the prior art or research associated with their company, byline, favorite researcher, CEO, etc. This is a fundamental issue (and constraint) with CEP, in my opinion. Complex event processing does not stand alone as an art or a science, nor should it, nor should it be based on single dimensional, or small groups of single dimensional, technologies.

If you want to see many of the foundations of CEP, you don’t need to go much further than slide 12 of this* presentation from 2006, Processing Patterns for PredictiveBusiness.

Based on my observation, it reminds me of a small group of folks on a discovery mission where their ship lands on the shore of a distant land and they call this “new land” — “CEP” because they feel they have discovered a new land.* Nevermind the big cities that already exist or the many people already “in the fields” of their new land. *These*”CEP explorers” are seemingly in some kind of modern day epic struggle to define themselves as “discoverers” or “founders” and they are coming up with new names of the lakes, rivers, streams and mountains that defined the landscape long before their ship arrived.

Note: It is encouraging to see folks slowly “catching up”…. maybe in a few years we will move CEP beyond the “not invented here” mind share that we see today.

Also note that, recently we saw a flurry of posts where many people rightly stated that “CEP was overhyped” - but then in rebuttal the EPTS community leaders*came back with “Is CEP a mere hype?” or “Is CEP a hype?”. spinning the discussion to an extreme position that is wildly different than “CEP is Overhyped”.***



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