ISO 12100: Choosing a Risk Estimation Tool — Matrix, Risk Graph, Scoring or Hybrid

Date
2026-12-28
Location
Online
Host
Zach L

About this event

A live 30-minute expert session on Choosing a Risk Estimation Tool — Matrix, Risk Graph, Scoring or Hybrid (ISO 12100 — Machinery Risk Assessment). What We'll Cover: What ISO/TR 14121-2 offers — matrices, risk graphs, numerical scoring and hybrid tools — and how they implement ISO 12100 Clause 5.5 Step-by-step comparison of each tool on granularity, repeatability, defensibility and effort, with selection criteria that matter How the chosen tool and its parameter definitions are documented so results map cleanly back to ISO 12100 requirements Common mistakes: switching tools mid-project, matrices too coarse to show risk reduction, undocumented tool customisations The tool definition, calibration record and before/after estimates auditors expect to see justified in the technical file Related topics: iso tr 14121-2 · risk matrix · risk graph · numerical risk scoring · risk estimation tools · hybrid risk tool · risk assessment methodology · iso 12100 risk estimation · machinery risk tools comparison · risk assessment software · repeatable risk scoring · risk tool selection Critical Systems Analysis provides embedded functional safety consulting for ISO 12100 — Machinery Risk Assessment. Learn more: https://criticalsystemsanalysis.com Partner with us: https://meetings.hubspot.com/benjamin-twombly/strategic-partnerships

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About Functional Safety Foundations

This online session delivers expert-led instruction on the regulatory landscape and implementation approach for Functional Safety Foundations.

The cross-sector fundamentals underlying every functional safety standard: risk as severity × likelihood, the safety function concept, integrity levels, the safety lifecycle, and the split between random and systematic failures.

What it regulates

Shared vocabulary and reasoning: hazard → risk → risk reduction allocation → safety requirement → verified implementation → maintained integrity in operation.

Who must comply

Everyone entering the field — the conceptual base of the entire catalog.

Key requirements of Functional Safety Foundations

  • Hazard and risk fundamentals
  • Safety function anatomy: sensor-logic-actuator with defined safe state
  • Integrity ladders (SIL/PL/ASIL/DAL) as risk-reduction currencies
  • Random vs systematic failure treatment
  • Lifecycle and management of functional safety incl. competence

Key concepts: Functional Safety Foundations

Risk reduction allocation
Distributing required risk reduction among mechanical design, safeguards, control functions and procedures.
Functional safety management
Planning, competence, documentation and assessment wrapped around technical work.
Random vs systematic
Hardware wear-out/chance failures quantified statistically versus design/process errors controlled by rigor.
Safe state
The defined condition a function drives the equipment to on demand or fault.

Frequently asked questions: Functional Safety Foundations

Why can't testing alone prove safety?

Rare-event targets (like 1e-7/h) are unverifiable by test duration, and systematic errors evade random testing — hence the standards' dual machinery of quantified hardware analysis plus process rigor and independent assessment.

Standard information based on the published text of Functional Safety Foundations. Event content is provided by the host. For authoritative guidance, consult the official standard body.