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Trust and operations

Data Quality and Observability Framework

A production control layer for blocking bad data, monitoring freshness, and turning incidents into preventive engineering controls.

SLA

freshness monitoring

Gates

publication-blocking checks

Runbooks

faster incident recovery

The failure mode

What had to be solved

Critical reporting and AI consumers needed data products that were validated before publication and operationally supportable after deployment.

01

Validation

02

Monitoring

03

Alerting

04

Governance

Architecture

Validate

Validation gates check schema, nulls, duplicates, reconciliation, referential integrity, freshness, and business rules.

Reconcile

Orchestration routes failures into monitored paths with alerts, exception reporting, quarantine tables, and ownership metadata.

Monitor

Observability dashboards track pipeline metrics, freshness SLAs, volume anomalies, dependency failures, and incident status.

Recover

Runbooks define recovery points for partial loads, bad files, schema changes, reprocessing, and SLA breaches.

Key Engineering Decisions

01

Block publication instead of reporting bad data

Downstream consumers needed certified data products, not dashboards that discovered errors after publication.

Placed schema, null, duplicate, reconciliation, freshness, and business-rule gates before warehouse publication.

02

Turn failures into observable workflows

Pipeline failures, bad files, schema changes, and SLA breaches needed consistent operational handling.

Routed failures through monitored orchestration paths with alerts, exception reporting, ownership metadata, and runbooks.

03

Convert incidents into preventive controls

Recurring data issues should reduce future risk instead of becoming repeated manual triage.

Used root-cause analysis to add schema checks, freshness thresholds, reconciliation rules, tests, and automated recovery logic.

Operating Spec

Scale

  • Critical enterprise data products
  • Multi-source ingestion and warehouse publication
  • Operational SLA monitoring

Quality

  • Publication-blocking validations
  • Source-to-target reconciliation
  • Schema contracts
  • Freshness thresholds
  • Business-rule checks

Reliability

  • Runbooks
  • Automated alerts
  • Backfill controls
  • Incident triage
  • Preventive controls from recurring failures

Tools

dbt TestsGreat ExpectationsPySpark AssertionsAzure MonitorCloudWatchAirflowLineageData Contracts