There is currently a lot of excitement about data lakes and the possibilities that they offer, particularly about the analytics and data visualizations. As such, I’m increasingly being asked whether you really need Data Governance over a data lake.  After all, a data lake is a centralized repository that allows you to store all your structured and unstructured data on a scalable basis. Unlike a data warehouse, you can store your data as-is without having to structure it first.  This…