Why Dimensional Modelling Isn't Dead—It's Just Getting Started

The Great Data Modelling Debate Nobody Asked For Another meeting where someone confidently declared, “We don’t need data modelling anymore—just dump everything in the data lake and let analysts figure it out.” I’ve heard variations of this statement for years now, in meetings or at conferences. The pitch is always the same: traditional data warehousing is dead, dimensional modelling is a relic from the 90s, and modern big data tools have made structured modelling obsolete. Schema-on-read is the future. Agility over architecture.