Inspection Deficiency Severity Score Calculator
ANA›Life Services Authority›National Calculator Authority›Inspection Deficiency Severity Score Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
Inspection Deficiency Severity Score Calculator
Calculate a composite severity score for inspection deficiencies using a weighted risk-priority model based on defect severity, occurrence frequency, detectability, and regulatory/safety impact.
Defect Severity Level (1–10)
1 = Negligible | 5 = Moderate | 10 = Catastrophic / Safety-Critical
Occurrence / Frequency Rating (1–10) 1 in 2)"> 1 = Extremely Rare | 5 = Occasional | 10 = Almost Certain
Detection Difficulty Rating (1–10)
1 = Almost Certain Detection | 5 = Moderate | 10 = Virtually Undetectable
Regulatory / Compliance Impact Weight (1–3)
1 = No Regulatory Impact | 2 = Minor Concern | 3 = Major Violation
Repeat / Recurrence Penalty (0–2)
0 = First Occurrence | 1 = Previously Noted | 2 = Repeat / Chronic
Calculate Severity Score
function insCalc() { // --- Grab inputs --- var sVal = document.getElementById('ins-severity').value.trim(); var oVal = document.getElementById('ins-occurrence').value.trim(); var dVal = document.getElementById('ins-detection').value.trim(); var rVal = document.getElementById('ins-regulatory').value.trim(); var pVal = document.getElementById('ins-repeat').value.trim();
var resultDiv = document.getElementById('ins-result'); resultDiv.style.display = 'block';
// --- Validation --- var errors = [];
if (sVal === '' || isNaN(sVal)) errors.push('Defect Severity Level is required.'); if (oVal === '' || isNaN(oVal)) errors.push('Occurrence / Frequency Rating is required.'); if (dVal === '' || isNaN(dVal)) errors.push('Detection Difficulty Rating is required.'); if (rVal === '' || isNaN(rVal)) errors.push('Regulatory / Compliance Impact Weight is required.'); if (pVal === '' || isNaN(pVal)) errors.push('Repeat / Recurrence Penalty is required.');
var S = parseFloat(sVal); var O = parseFloat(oVal); var D = parseFloat(dVal); var R = parseFloat(rVal); var P = parseFloat(pVal);
if (!isNaN(S) && (S 10 || !Number.isInteger(S))) errors.push('Defect Severity Level must be a whole number between 1 and 10.'); if (!isNaN(O) && (O 10 || !Number.isInteger(O))) errors.push('Occurrence / Frequency Rating must be a whole number between 1 and 10.'); if (!isNaN(D) && (D 10 || !Number.isInteger(D))) errors.push('Detection Difficulty Rating must be a whole number between 1 and 10.'); if (!isNaN(R) && (R 3 || !Number.isInteger(R))) errors.push('Regulatory / Compliance Impact Weight must be 1, 2, or 3.'); if (!isNaN(P) && (P 2 || !Number.isInteger(P))) errors.push('Repeat / Recurrence Penalty must be 0, 1, or 2.');
if (errors.length > 0) { resultDiv.className = 'calc-result calc-error'; resultDiv.innerHTML = 'Please correct the following:' + errors.map(function(e){ return ''; }).join('') + ''; return; }
// --- Core Formula --- // Base RPN (Risk Priority Number) = S × O × D // Adjusted DSS = (S × O × D × R) + (P × 10) // Normalized DSS (0–100 scale): // Max raw = (10 × 10 × 10 × 3) + (2 × 10) = 3000 + 20 = 3020 // Normalized = (DSS_raw / 3020) × 100
var RPN = S * O * D; // Base Risk Priority Number (max 1000) var DSSraw = (S * O * D * R) + (P * 10); // Adjusted raw score (max 3020) var DSSmax = 3020; var DSSnorm = (DSSraw / DSSmax) * 100; // Normalized 0–100
// --- Classification --- var classification, classColor, recommendation; if (DSSnorm ' + 'Base RPN (S × O × D)' + '' + RPN.toFixed(0) + ' / 1,000' + 'Adjusted Raw Score' + '' + DSSraw.toFixed(0) + ' / 3,020' + 'Normalized DSS (0–100)' + '' + DSSnorm.toFixed(1) + '' + '' +
'' + 'Classification: ' + classification + '' + '' +
'Recommendation: ' + recommendation + '
' +
'#### Input Summary ' + '' + 'ParameterRatingLabel' + 'Severity (S)' + S + '' + sevLabel + '' + 'Occurrence (O)' + O + '' + occLabel + '' + 'Detection (D)' + D + '' + detLabel + '' + 'Regulatory Weight (R)' + R + '' + regLabel + '' + 'Recurrence Penalty (P)' + P + '' + repLabel + '' + ''; }
#### Formula
Step 1 — Base Risk Priority Number (RPN):
RPN = S × O × D
Step 2 — Adjusted Deficiency Severity Score (DSSraw):
DSSraw = (S × O × D × R) + (P × 10)
Step 3 — Normalized DSS (0–100 scale):
DSSnorm = (DSSraw / 3,020) × 100
Where:
- S = Defect Severity Level (1–10)
- O = Occurrence / Frequency Rating (1–10)
- D = Detection Difficulty Rating (1–10; higher = harder to detect)
- R = Regulatory / Compliance Impact Weight (1–3)
- P = Repeat / Recurrence Penalty (0–2)
- 3,020 = Maximum possible raw score [(10×10×10×3) + (2×10)]
- P × 10 = Penalty points added for repeat deficiencies (0, 10, or 20)
Classification Thresholds (Normalized DSS):
- 0–19.9 → Low
- 20–39.9 → Moderate
- 40–59.9 → High
- 60–79.9 → Critical
- 80–100 → Severe / Stop-Work
#### Assumptions & References
- The base RPN model is derived from FMEA (Failure Mode and Effects Analysis) methodology as defined in AIAG & VDA FMEA Handbook (2019) and MIL-STD-1629A.
- The Regulatory Impact Weight (R) extends the standard RPN to account for compliance consequences, consistent with ISO 9001:2015 §10.2 (nonconformity and corrective action) and ISO 45001:2018 risk frameworks.
- The Recurrence Penalty (P × 10) reflects industry practice in Joint Commission and FDA 21 CFR Part 820 quality system regulations, which treat repeat deficiencies as elevated risk indicators.
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