Tag: Data Engineering
All the articles with the tag "Data Engineering".
Schema Evolution Without Breaking Consumers
Published: at 01:00 PMA source team renames a column from `user_id` to `customer_id`. Twelve hours later, five dashboards show blank values, two ML pipelines fail, and the data en...
Dimensional Modeling: Facts, Dimensions, and Grains
Published: at 01:00 PMDimensional modeling is the most widely used approach for organizing analytics data. Developed by Ralph Kimball, it structures data into two types of tables:...
Why Your AI Initiatives Fail Without a Semantic Layer
Published: at 01:00 PMYour team builds an AI agent. It connects to your data warehouse. A product manager types "What was revenue last quarter?" and gets a number. The number is w...