What are surrogate keys, and why are they used? Data modeling is among the concepts that form the backbone of the field of data engineering. It quietly keeps everything in place even if many people outside of the tech industry don’t observe it. At its heart it is the method of organizing and arranging data in order for it to be simple to access, manage and comprehend. Imagine it as making the plans for the house prior to construction beginning. You wouldn’t put blocks together by accident; you’d think about the layout of each room and how the wiring is distributed through the house, and what areas of the foundation requires reinforcement. Similar to this the data modeling process helps companies determine how data flows through their systems, what connections exist between different elements of data and the way data should be stored to maximize effectiveness and accuracy. Without a good model, data can become chaotic, inconsistent and hard to work with–just like a home built without the proper plan. Data Engineering Course