DataFunTalk

Jun 11, 2026 · Artificial Intelligence

How Qichacha Leverages Large Language Models for Field‑Level Data Lineage

This article details Qichacha's use of large language models to extract field‑level data lineage from heterogeneous, non‑standard code and ETL assets, describing the motivation, architectural blueprint, practical challenges such as cost, accuracy and hallucination, and the resulting improvements in impact analysis, metric tracing, and sensitive‑data governance.