tag:blogger.com,1999:blog-7831813422886730737.post8376814089215475471..comments2023-10-08T10:44:28.524+03:00Comments on Event Processing Thinking: On "CEP and Big Data 2" - comments on Philip Howard's observations.Opher Etzionhttp://www.blogger.com/profile/10791357917675270335noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7831813422886730737.post-68384922826236920472012-02-02T00:20:29.558+02:002012-02-02T00:20:29.558+02:00Ahh Amit... That's what started me on the EPA ...Ahh Amit... That's what started me on the EPA road years ago... there are still functionalities which AMIT was ahead of its time for. <br /><br />I have given quite a bit of thought to the matter if EDA is more of a real time vs. batch and to be honest I believe its both. Here is why... It solely concerns the criticality of the action, essentially if the action has to happen in real time then the EDA should perform in real time. If however the Action does not have a criticality associated with it then one can use a more relaxed architecture. The key is simply the lifespan of the action and its importance during that lifespan.<br /><br />The CEP debate (CEP or EP) has been one I have been struggling with for a long time... CEP itself is just a layer of the total EDA layout. From my standpoint you have Events (Raw events as it were) to which you perform some form of SEP (simple event processing...aka filtering out the white noise). SEP is a very important step as it narrows down the stream to the events of interest. After SEP is performed CEP should be performed on the refined event stream. This is where one should perform things such as enrichment, correlation and the like... Now this is where it gets confusing to quite a few people, That whole process can be extrapolated out several times into a federated hierarchy.<br />Ultimately I use the term Event Driven Architecture to explain this federation to people not CEP.<br /><br />I agree additionally that CEP is a over used word that many vendors throw around with no concept of what it means... Just because you have a stateful machine does not a CEP / EDA product make. <br /><br />That is just my thoughts for now on the matter.Celticht32https://www.blogger.com/profile/05084643145934646408noreply@blogger.com