Data validation and testing frameworks for ensuring pipeline correctness and data quality: Great Expectations (enterprise) and Pandera (lightweight). Integrates with orchestration tools for automated validation.
| Approach | Declarative "expectations" | Schema definitions with checks | | DataFrame Support | Pandas, Spark, SQL, BigQuery | Pandas, Polars, PySpark, Dask | | Validation Output | JSON results with detailed diagnostics | Boolean or exception | | Best For | Enterprise data platforms, comprehensive profiling | Python-centric pipelines, lightweight |
| Learning Curve | Steeper (concepts: DataContext, Checkpoints) | Lower (Python decorators/classes) | | Integration | CI/CD, Airflow, Prefect, Dagster | pytest, FastAPI, any Python code |
Prüfung und Validierung der Datenqualität mit Great Expectations und Pandera. Schemavalidierung, Datenqualitätstests, Profilerstellung und automatisierte Validierung in Pipelines. Quelle: legout/data-platform-agent-skills.