Phase 17 of the risk-assessment polish. Two pieces:
A) PLr per EN ISO 13849-1 Anhang A (Risikograph)
- HazardPattern.DefaultAvoidability (1 = P1, 2 = P2). Optional;
defaults to P1 if unset (conservative — operator can raise after
review).
- ComputePLr(s,f,p) implements the canonical 8-leaf binary tree
(S1F1P1 -> a, ..., S2F2P2 -> e). Pinned by 8 table-driven tests.
- SeverityToS / ExposureToF map the existing 1-5 fields to the
binary S/F at the documented threshold (3).
- At project initialise, every hazard's Description is appended
with "Risikograph EN ISO 13849-1 (Anhang A): S2 · F1 · P1 -> PLr c"
so the audit value is visible without leaving the hazard view.
- PatternMatch carries DefaultAvoidability so the init handler can
pick it up without a second pattern lookup.
B) Methoden-Kopf am Bericht
- GET /clarifications.html now opens with a standardised methodology
block: ISO 12100 Anhang B (hazard ID) + ISO 13849-1 Anhang A
(PLr graph) + ISO 12100 6.2/6.3/6.4 (reduction hierarchy). Same
wording on every export, ready for the Anlagenbauer-Uebergabe.
- Only norm identifiers — no norm text reproduced.
C) ISO12100Section in Hazard Description
- When a pattern is labeled with ISO12100Section, the hazard
description gets a "Klassifikation: EN ISO 12100 Anhang B,
Abschnitt 6.3.5.4" suffix. Provenance for the auditor.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Benjamin Admin