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What is the purpose of the Bronze, Silver, and Gold layers in a data pipeline?

Spark/Big Datamedium0.6 min readPremium
Frequency
Low
Asked at 2 companies
Category
452
questions in Spark/Big Data
Difficulty Split
88E|81M|283H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
CapgeminiInfosys
Expert AnswerPremium
111 wordsInterview-ready
**Bronze**: Raw ingestion; immutable; schema-on-read; data as-is from source. Single source of truth for replay and lineage. **Silver**: Cleansed, deduplicated, conformed; schema enforced; business-level quality. Trusted layer for analytics. **Gold**: Aggregated, modeled for consumption; star schema, metrics, reporting-ready. **Why it matters**: Clear ownership, incremental processing, and deterministic replay....
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