The benefits of database modeling

Tactics without strategy is the noise before defeat. - Sun Tzu

For many people, database modeling brings to mind stale diagrams, arcane symbols, or extra work at the end of a project. Only a decade ago, fueled by the rise of distributed computing in the early 2000s—which popularized the concept of big data—the notion that modeling is dead gained notoriety. More precisely, it was thought that cheap and near-limitless computing power had made planning and designing a thing of the past. It was said that flexible semi-structured data formats and the ability to parse them on the fly—known as schema-on-read—had made modeling obsolete.

Eventually, operating and maintenance costs caught up with reality and revealed two great shortcomings of the schema-on-read approach. One is that no matter how data is structured, it must be functionally bound to the business that it helps support. In other words, semi-structured...