Detection-to-resolution flow for the ED throughput metric discrepancy, a 12% variance across three Radar dashboards caused by inconsistent date anchors. This flow generalizes to any data quality incident in the reporting environment.
Anomaly Detected
QI director flags 12% ED visit count variance between two Radar dashboards for the same month and similar-volume sites
Scope the Incident
How many dashboards affected? Which date range? Which sites? How many patients impacted?
Finding: 3 dashboards, 2 months of data, 214 affected encounters
Variance = encounters that opened in late June and closed in early July (month-boundary straddle)
Retrieve Underlying Template IDs
Pull template IDs from each Radar component configuration. Open in Reporting Workbench.
Side-by-Side Criteria Comparison
Compare all filter definitions across 3 templates. Look for field ID differences in date criteria.
Root Cause Identified
Dashboard A: PAT ENC 12060 (Arrival DT). Dashboard B: PAT ENC 18520 (Close DT). Dashboard C: HAR field (Check-in DT). Three different anchors, three different counts.
Confirm Fix with Clinical Stakeholder
Confirm with ED informatics lead that Arrival DT (PAT ENC 12060) is the clinically correct anchor for operational throughput metrics
Apply Fix to All 3 Templates
Update date anchor to PAT ENC 12060 across all 3 RWB templates. Add description field annotation documenting the standard.
Validate and Deploy
Re-run 3-step QA. Confirm metrics align within 0.1% residual variance. Deploy updated templates.
Stakeholder Communication Sent
Written summary to QI team: what happened, why, what changed, and confirmation that historical data was not altered. QI director sign-off within 48 hours.
Prevention Measures Added
"Date anchor field" added as required column in all future spec documentation. Cross-reference validation added to QA checklist for all new builds.
Incident Closed
Total resolution time: 48 hours from detection to stakeholder sign-off
Timeline: Anomaly reported Monday AM. Root cause confirmed Monday PM (4 hours). Fix deployed Tuesday AM. Stakeholder confirmation Tuesday PM. Spec template updated Wednesday. Total elapsed: 48 hours.