Bronze→Silver→Gold tiered data quality pattern for lake/warehouse pipelines

Raw ingestion zone — data stored exactly as received from sources

Cleansed, deduplicated, validated data; business-ready but not aggregated

Aggregated, business-metric-ready tables serving dashboards and ML models

Python API for Apache Spark enabling distributed big-data transformations

Google Cloud's managed Spark/Hadoop cluster service

Google's serverless, petabyte-scale cloud data warehouse

Managed Apache Airflow service on GCP for workflow orchestration

Airflow pipeline definition; nodes are tasks, edges are dependencies

Google's AI coding assistant integrated in Cloud Workbench and IDEs

CI/CD platform running automated workflows triggered by git events

Continuous Delivery platform with AI-driven rollback and deploy verification

Automated check ensuring data fields match expected types/constraints

Record of data origin, transformations, and consumption path

Spec-driven AI workflow tool defining canonical field contracts across repos