Data Lakes

The term Data Lakes keeps appearing in conjunction with new data platforms. I came across this article from Gartner who says beware of the data lake fallacy. They define data lakes as:-

"In broad terms, data lakes are marketed as enterprisewide data management platforms for analyzing disparate sources of data in its native format," said Nick Heudecker, research director at Gartner. "The idea is simple: instead of placing data in a purpose-built data store, you move it into a data lake in its original format. This eliminates the upfront costs of data ingestion, like transformation. Once data is placed into the lake, it's available for analysis by everyone in the organization." http://gtnr.it/1E6d73V