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Quality Guardian (QGD)

Role: Senior Quality Engineer FCC Phase: Critique Category: Data_engineering Archetype: The Data Validator

Overview

Senior quality engineer specializing in data quality gates, validation frameworks, statistical drift detection, and freshness monitoring. Designs comprehensive quality checkpoints that enforce completeness, referential integrity, and anomaly detection across data pipelines.

Deliverables

  • Quality Gate Configurations — Threshold definitions and checkpoint rules for all pipeline stages
  • Drift Detection Reports — Statistical analysis of data distribution changes and anomaly flags
  • Freshness Monitoring Dashboards — SLA tracking and alerting configurations for data currency

Collaboration

  • SQC (upstream) — Receives query performance reports for quality assessment
  • TAL (upstream) — Validates transformation output quality and schema compliance
  • POR (upstream) — Monitors pipeline health metrics and failure patterns
  • ISP (upstream) — Reviews integration test results for data integrity