safety-metric

Safety-metric is maintained for the sake of hazard-assessment. Quantitative measures of safety performance provide the data that hazard-assessment uses to evaluate risk levels and track improvements.

Safety metrics are collected and analyzed to inform safety management decisions, track progress, and drive improvements. The designed purpose of safety metric gathering is to support safety management's operation. Servant points at master.

which-came-first: safety-indicator as a concept predates safety-metric. INSTANCE_OF per Law 9: a safety-metric IS a specific kind of safety-indicator — a quantified measure used to track safety performance and trends. A competent speaker in safety management would recognize a metric as an indicator. Files against the nearest kind.

Pre-test: safety-baseline is a specific kind of safety-metric — a defined reference point against which safety conditions are measured. A competent speaker would call a safety baseline 'a safety metric.' Nearest kind is safety-metric, not the broader metric.

A safety-kpi IS a specific kind of safety-metric — it is a quantifiable measure of safety performance. Per Law 9, a competent speaker calls a safety-kpi 'a safety-metric' (specifically, one designated as critical). Files against the nearest kind: safety-metric.

A safety-snapshot IS a specific kind of safety-metric: it is a point-in-time measurement of safety conditions, performance, or culture. Like any metric, it quantifies a specific dimension; unlike a trend, it captures a single moment. The note 'point-in-time record' confirms it is a metric by definition.

Safety capacity (the measurable margin of safety in a system) IS a specific kind of safety metric — it quantifies how much safety margin exists. Competent-speaker test: 'a safety capacity is a safety metric.' Direction: specific→general, Law 9 satisfied.

safety-symptom is a specific kind of safety-metric: a measurable indicator that signals degraded safety capacity or emerging hazard conditions. Competent-speaker test: 'a safety-symptom is a safety-metric' — passes cleanly.

safety-bias is a specific kind of safety-metric: a systematic error in safety measurement or reporting that skews perception of actual safety conditions. It measures how safety data itself is biased, making it a meta-metric within safety assessment.