Dependency management
Make order explicit.
Validation must finish before loading. Modelling must finish before reporting.
Pipeline reliability
A failure must stop in the right place.
Dependencies control task order. Failure isolation prevents incomplete data from reaching users.
Visual model
Run in order. Stop on failure.
A downstream task starts only after its upstream control succeeds. A failed task records its state and blocks publication.
Dependency managementFailure isolationRecovery
01Preflight
→
02Load
→
03Model + test
→
04Publish
Pass
Continue to the next controlled task.
Control gate
Fail
Record the error, block downstream work, and rerun safely.
Failure isolation
Protect downstream users.
A failed upstream task must not publish incomplete or inconsistent data.
Recovery
Restart from a controlled state.
Retries, task state, and idempotent loads support safe recovery.
Communication
Make the failure actionable.
Record the symptom, impact, checked components, likely cause, and required action.
Where I used it
Airflow control and monitoring path
Preflight, ingestion, dbt, reconciliation, freshness, and summary run in order. Audit results feed read-only Grafana and Streamlit views.
View architecture →Controlled monthly intake
Invalid files and records remain outside the reportable output.
View system →