The 80/20 Framework Architecture: Maximizing Reuse in ETL Systems
80 percent of ETL code is the same across every pipeline. The 80/20 framework captures that common infrastructure so you focus on what makes your pipeline unique.
Tag
Design Patterns
5
Essays
System Blueprints 
System Blueprints Configuration-Driven ETL: Separating Logic from Declaration
Hard-coded field mappings work until they do not. Configuration-driven ETL lets you change behavior without changing code.
System Blueprints Proven Production Data Cleaning Patterns: Avoid These Common Mistakes
Phone numbers arrive in 47 different formats. Dates come as strings or 0000-00-00. These production-tested cleaners handle edge cases that break naive implementations.
System Blueprints Iterator Patterns: Proven Guide to Avoid Memory Crashes
With thousands of records, loading everything into an array crashes your server. Iterator patterns solve this by processing one record at a time, keeping memory constant.
System Blueprints ETL Pipeline: Proven 6-Phase Pattern to Avoid Debugging Nightmares
Your ETL pipeline fails when everything is tangled together. The 6-phase pattern separates responsibilities so failures become obvious and debugging becomes easy.