Knowella

Bowtie Analysis

Maps a major hazard from its causes through to its consequences, and shows which barriers sit in between. Built for each fatal risk and reviewed yearly. Carried out by a facilitated team. Produces the critical controls that then get their own verification schedule.

KnowSafeAssessmentSAF-062Pinned in navigation
Completed by
Carried out by a facilitated team
Raised
When the task, area or population being assessed is new or

Summary

In short

  • A bowtie analysis is an assessment used in KnowSafe that maps a major hazard from its causes through to its consequences, and shows which barriers sit in between. It is built against ICMM, energy industry practice and forms part of the Critical Control and Fatal Risk programme.
  • Built for each fatal risk and reviewed yearly. Carried out by a facilitated team.
  • The template holds 43 fields across 5 sections, with threats and preventive barriers, consequences and mitigating barriers repeating for each entry.
  • Scoring is barrier health, where high is good.
  • ICMM is international Council on Mining and Metals. Publishes critical control management, widely borrowed outside mining for fatal risk control.
  • It connects to the rest of the library: feeds Critical Control Register.

What it is

What it is

What is a bowtie analysis?

A bowtie analysis is an assessment used in KnowSafe that maps a major hazard from its causes through to its consequences, and shows which barriers sit in between. It is built against ICMM, energy industry practice and forms part of the Critical Control and Fatal Risk programme.

When is a bowtie analysis completed?

A bowtie analysis is completed when the task, area or population being assessed is new or has materially changed. Built for each fatal risk and reviewed yearly.

When to use it

When to use it, and when not to

This assessment is one step in a larger programme. Using it for work that belongs to a neighbouring template produces records that are hard to report on later.

Use it for

  • The event or activity this assessment covers has occurred, or is about to
  • A new record is needed; each one gets its own ID in the form BOWTIE-2026-000
  • You are running the Critical Control and Fatal Risk programme and this is one of its steps
  • A linked record needs this one to exist: feeds critical control register

Not for

  • Job Safety Analysis, which breaks a job into steps, finds the hazards in each and sets the controls.
  • Pre-Task Risk Assessment, which a short check done by the crew right before work starts, covering what has changed today.
  • Task Risk Assessment, which a fuller assessment of a task, its hazards and its controls, using the shared risk method.
  • Anything outside KnowSafe, which belongs in the workspace that owns that process

Standards

What it is built against

ICMMInternational Council on Mining and Metals

Publishes critical control management, widely borrowed outside mining for fatal risk control.

energy industry practiceEnergy industry practice

Isolation and process safety practice developed in the energy sector.

FAQ

Frequently asked questions

What is the bowtie analysis template based on?+

It is built against ICMM, energy industry practice. ICMM is international Council on Mining and Metals. Publishes critical control management, widely borrowed outside mining for fatal risk control. energy industry practice is energy industry practice. Isolation and process safety practice developed in the energy sector.

What sections does the bowtie analysis contain?+

There are 5 sections: header, the top event, threats and preventive barriers, consequences and mitigating barriers, result. Together they hold 43 fields, 32 of which are required.

How often is a bowtie analysis raised?+

A new record is raised when the task, area or population being assessed is new or has materially changed. Each one is given an ID in the form BOWTIE-2026-000, so it can be traced and referenced from other records.

Which programme does the bowtie analysis belong to?+

It is part of Critical Control and Fatal Risk. Named fatal risks with owned critical controls and a verification schedule that is actually run.

How is a bowtie analysis scored?+

Scoring is barrier health. High is good. Scores exist to make the form tell you something, not to produce a percentage for its own sake.

Can the bowtie analysis template be changed?+

Yes. Every field, option, score and conditional rule is editable, and the links to other templates come with it. Most teams install it as it is, run it for a cycle, then adjust.

The agents

What the agents do with it

The form is the easy part. Keeping it current, routing it to the right owner and holding the evidence together is the work that actually slips.

KnowSafe

Holds the bowtie analysis library against your registers, routes each record to its owner, and keeps the evidence trail together.

Ella

Coordinates the crew, rolls completion and exceptions into one view, and holds every write for your approval before it touches a record.

This template lives in KnowSafesafety and compliance. Incidents, hazards, permits, inspections and the critical controls behind them.

Meet KnowSafe

Sources

Sources

  • ICMM — International Council on Mining and Metals
  • energy industry practice — Energy industry practice

KnowSafe

Also in Risk Studies

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Assessment

Job Safety Analysis

Breaks a job into steps, finds the hazards in each and sets the controls. Done before new or changed work and reviewed yearly. Carried out by a supervisor with the people who do the job. The most useful safety document on most sites, because the workers write it.

Assessment

Pre-Task Risk Assessment

A short check done by the crew right before work starts, covering what has changed today. Done at the start of every shift or task. Completed by the crew together in a few minutes. Catches the conditions that a yearly assessment can never predict.

Assessment

Task Risk Assessment

A fuller assessment of a task, its hazards and its controls, using the shared risk method. Done when a task is new, has changed or has caused problems. Carried out by a trained assessor with the work team. Feeds the controls into the JSA and the training.

Assessment

Hazard Identification Study

A structured search for hazards across an area, process or new installation. Run at design stage and on a set review cycle. Carried out by a team drawn from operations, maintenance and safety. Feeds the risk register rather than producing a standalone document.

Assessment

What If Study

A guided team discussion asking what could go wrong at each stage of a process. Run for new processes or before a significant change. Led by a facilitator with operations and engineering. Simple to run and surprisingly effective at finding gaps others miss.

Assessment

Change Risk Review

Assesses the risk created by a proposed change before it goes ahead. Raised alongside every management of change record. Carried out by the change owner with affected areas. Covers what the change introduces and what it might quietly remove.

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