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UC-FCM-201: Bulk Screening Audit

1. Metadata

Property Value
ID UC-FCM-201
Actor Field Coordinator
Trigger Scheduled on-site school audit / Compliance check
Pre-conditions Coordinator is within 500m of the school (GPS check); Teacher has submitted screening data
Post-conditions Audit report submitted; Discrepancy report generated
Side Effects Flag school for 'High Discrepancy' in the National Dashboard if variance > 5%

2. Description

A high-integrity audit workflow designed to verify the accuracy of nutritional data (Height/Weight) reported by school teachers.

3. Success Scenario

  1. Site Arrival: Coordinator checks in at the school using the app's GPS-validated QR scanner.
  2. Sample Selection:
    • System generates a random 10% sample of the student population for re-screening.
    • Coordinator views the list on the mobile app.
  3. Execution:
    • Coordinator re-measures the selected students.
    • System enforces "Blind Entry": Coordinator cannot see the teacher's previous measurement while inputting the audit value.
  4. Visual Evidence:
    • Coordinator captures 3 photos: (1) The screening equipment (2) A wide shot of the session (3) The physical logbook.
  5. Cross-Validation:
    • Upon submission, the system performs a real-time variance check between Teacher and Coordinator data.
    • If variance is within +/- 1%: Audit "Green."
    • If variance exceeds 5%: Audit "Flagged."
  6. Reporting: Coordinator signs the digital audit form and submits the report.

4. Acceptance Criteria

  • [ ] Geo-Fencing: Audits can only be submitted if the device GPS matches the school's registered coordinate.
  • [ ] Image Integrity: All uploaded photos must include a translucent white-label watermark with Timestamp and GPS coordinates.
  • [ ] Audit Speed: The coordinator must be able to complete a 10-student spot-check in under 20 minutes.
  • [ ] Privacy Compliance: No student faces should be clearly identifiable in session photos (Auto-blur requirement).

5. Audit Logic (Variance Check)

flowchart TD Audit[Audit Submission] --> Var{Variance Check} Var -- "< 1%" --> Green[Result: Green] Var -- "> 5%" --> Flag[Result: Flagged] Var -- "> 10%" --> Rescan[Trigger Full Re-scan]