URS & FS — User Requirements and Functional Specification

This document describes the controlled interface and behaviour of BeclometasoneFormoterol_MometasoneFormoterolQualityChecker for Beclometasone/Formoterol & Mometasone/Formoterol Quality Checker.

Domain limits and critical parameters

• ℹ️ Utility checks critical parameters of ICS/LABA combination inhalers:
• • Steroid Content: Within product specification
• • Formoterol Content: Within therapeutic range
• • Fine Particle Fraction (FPF): ≥15%
• • Dose Uniformity: deviation ≤15%
• • Moisture Content: ≤1.0%
• • Impurities: ≤1.5%
• • Valve Leak Rate: ≤0.5 mL/min
• ⚠️ CRITICAL: Low fine particle fraction reduces corticosteroid delivery to peripheral lungs.
• BatchNumber,ProductType,SteroidAssayMcgPerDose,FormoterolAssayMcgPerDose,FineParticleFractionPercent,DeliveredDoseUniformityDeviation,MoistureContentPercent,ImpuritiesTotalPercent,ValveLeakRateMlPerMin,ActuatorForceNewton
• ⚠️ CRITICAL:
• • Component content must match declared dose for anti-inflammatory and bronchodilatory effect
• • Dose uniformity is critical for therapy stability
• • Control of aerodynamic parameters (FPF), critical for ICS
• • Stability check of composition (moisture, impurities)
• Critical parameters:
• • Steroid Assay: Product Specific (e.g., 85-115% of label claim)
• • Formoterol Assay: Therapeutic Range

URS — User Requirements Specification

input.csv contract

BatchNumber,ProductType,SteroidAssayMcgPerDose,FormoterolAssayMcgPerDose,FineParticleFractionPercent,DeliveredDoseUniformityDeviation,MoistureContentPercent,ImpuritiesTotalPercent,ValveLeakRateMlPerMin,ActuatorForceNewton
BEC-FOR-2026-001,BEC-FOR,100.0,6.0,22.0,7.5,0.3,0.6,0.1,18.0
MOM-FOR-2026-001,MOM-FOR,100.0,5.0,18.0,8.0,0.4,0.7,0.2,19.5

Input validation rules

FS — Functional Specification

Example output.json

{
  "utilityId": "beclometasone-formoterol-mometasone-formoterol-quality-checker",
  "utilityFolder": "BeclometasoneFormoterol_MometasoneFormoterolQualityChecker",
  "package": "Global/API coverage extension",
  "overallStatus": "PASS|WARNING|FAIL",
  "sourceFile": "input.csv",
  "processedAtUtc": "2026-07-02T00:00:00Z",
  "checks": [
    {
      "parameter": "BatchNumber",
      "value": "BEC-FOR-2026-001",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-001"
    },
    {
      "parameter": "ProductType",
      "value": "BEC-FOR",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-002"
    },
    {
      "parameter": "SteroidAssayMcgPerDose",
      "value": "100.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-003"
    },
    {
      "parameter": "FormoterolAssayMcgPerDose",
      "value": "6.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-004"
    },
    {
      "parameter": "FineParticleFractionPercent",
      "value": "22.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-005"
    },
    {
      "parameter": "DeliveredDoseUniformityDeviation",
      "value": "7.5",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-006"
    },
    {
      "parameter": "MoistureContentPercent",
      "value": "0.3",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-007"
    },
    {
      "parameter": "ImpuritiesTotalPercent",
      "value": "0.6",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-008"
    },
    {
      "parameter": "ValveLeakRateMlPerMin",
      "value": "0.1",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-009"
    },
    {
      "parameter": "ActuatorForceNewton",
      "value": "18.0",
      "status": "PASS|WARNING|FAIL",
      "message": "Deterministic rule-based check result",
      "ruleReference": "FS-RULE-010"
    }
  ],
  "criticalFindings": [],
  "warnings": [],
  "audit": {
    "inputHash": "sha256:<calculated at runtime>",
    "rulesVersion": "<utility executable version>",
    "documentation": "BeclometasoneFormoterol_MometasoneFormoterolQualityChecker.documentation.html"
  }
}

Traceability matrix

IQ/OQ/PQ test scenarios

QA/QC and change control

• Do not rename columns without updating validator, documentation and test set.
• Retain input.csv, output.json, executable version and checksum.
• Before production use, perform IQ/OQ/PQ or equivalent CSV/CSA verification.
• Critical limits shall be verified against the approved specification, registration dossier and local SOPs.
• For combination products, document whether the specialized FDC utility or fallback component checks were used.
• The utility provides structured QC decision support; final release decision remains with QA/QP and approved procedures.