List some of the Dis-advantages of Event Driven Architecture

 Posted by Niladri.Biswas on 9/11/2012 | Category: Design Pattern & Practices Interview questions | Views: 2417 | Points: 40
Answer:

- Event traceability through the system is difficult as the event can traverse in different directions

- Without complex update semantics, all changes in the subject are pushed to all observers regardless of their need, resulting in unnecessary broadcast traffic

- The observers have no knowledge of each other’s presence, so the final outcome of an event response can be hard to track down

- In distributed event architecture, the event context gets copied for each observer and reduces memory scalability


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