Sensing and privacy
Data retention period
Durée de conservation des données
Data retention period is the length of time information is kept before deletion, aggregation, or another approved disposition. For curb systems, retention should match a documented operational or legal purpose, with separate treatment of raw images, identifiers, event records, and aggregate statistics rather than one indefinite default.
Understanding the term
A retention policy needs a deletion process that includes backups and supplier systems where applicable. Stating a duration without implementing disposal leaves the practical risk unchanged.
Validate the measurement against an independent reference under representative conditions. Record uncertainty, coverage, missing intervals, and the difference between a raw observation and an inferred activity. Technical outputs should be used only for purposes they can support reliably. Assign responsibility for calibration, corrections, access, and retention, and assess privacy across the complete data flow. An operational dashboard can conceal measurement errors if it displays precise values without their method or limitations.