Taking what many see as the next step in big data analysis, Google is previewing a service called Google Cloud Dataflow that analyzes live data, potentially giving users the ability to view trends and be alerted to events as they happen. "There's an enormous amount of data being created, and so you need a way to ingest that in a more intelligent way," said Brian Goldfarb, Google Cloud Platform head of marketing. With big data, "the program models are different. The technologies are different. It requires developers to learn a lot and manage a lot to make it happen."