Section 98 of 105
95. Data Quality, Retention and Historical Traceability
Stable section ID: S05-CON-014-SECTION-98 · 17 content blocks
System05 engineering data shall be managed according to its lifecycle purpose and consequence.
Data quality shall consider:
- Accuracy.
- Completeness.
- Consistency.
- Timeliness.
- Resolution.
- Authenticity.
- Traceability.
- Availability.
- Measurement uncertainty.
- Fitness for intended use.
Retention periods shall be proportionate to safety significance, legal obligations, service life, certification, reuse potential, and historical interpretation.
Safety-, identity-, configuration-, inspection-, maintenance-, and failure-critical records shall remain available for the period required to understand and safely manage the asset.
Historical information shall not be overwritten by current information. Data corrections, migrations, transformations, and format changes shall preserve lineage and meaning.
High-volume sensor data may be summarized or selectively retained when justified, but material events, anomalies, threshold exceedances, calibration history, and evidence supporting engineering decisions shall remain traceable.
Loss, corruption, or unavailability of required data shall produce a declared information state. Systems shall not continue high-consequence operation as though missing information were valid.