Dagster: Software-defined assets approach. You define what data should exist, not how to run jobs. Built-in data quality checks. Better local development experience.
@asset
def daily_orders(raw_orders):
return raw_orders.groupby('date').sum()
Prefect: Python-native, dynamic workflows. Easier than Airflow for complex branching logic. Cloud-hosted option simplifies operations.
When to choose:
- Airflow: Industry standard, most jobs require it
- Dagster: New projects, asset-centric thinking
- Prefect: Dynamic workflows, simpler setup