Russell Jurney describes the lifecycle of data/events in an analytic application:
EVENTS -> RUBY -> AVRO -> PIG -> VOLDEMORT -> SINATRA -> WEB BROWSER -> USER
The first step to building analytics applications with Hadoop is to plumb your application from end to end: from collecting raw data to displaying something on the users’ screen. This is important, because models can get complex fast, and you need user feedback plugged into the equation from the start.
Original title and link: Booting the Analytics Application ( ©myNoSQL)