When documenting performance data in ITM records, which items should be included?

• A. Readings, deficiencies found, corrective actions, and next inspection date.
• B. Only the date.
• C. Only the readings.
• D. Only the next inspection date.

Answer: (C)

Performance data are the actual measurements collected during testing and monitoring, showing exactly how the system performed. Those numbers—readings from gauges, meters, test results, and other quantitative measurements—provide objective evidence of whether the system meets requirements and how it trends over time. Therefore, the essential items to include are the readings themselves, since they quantify performance.

Dates or next inspection dates don’t show how the system performed, they merely indicate when the check occurred or when to check again. Deficiencies found and corrective actions are important for follow-up, but they describe what was observed and what was done, not the numerical performance data. In a complete ITM record, you would note those observations and actions in their respective sections, while the performance data section focuses on the actual readings to prove the system’s performance. If a reading is out of range, you still record the exact value, which then supports any notes about deficiencies and required actions.