![Provisioning data for advanced analytics in Hadoop](https://blogs.sas.com/content/datamanagement/files/2015/02/Main.jpg)
The data lake is a great place to take a swim, but is the water clean? My colleague, Matthew Magne, compared big data to the Fire Swamp from The Princess Bride, and it can seem that foreboding. The questions we need to ask are: How was the data transformed and