Human Factors & PIF: The Nine Performance Influencing Factors, Explained

Of everything that changed when OCIMF moved from VIQ7 to SIRE 2.0, none of it draws more debate on deck than the Human Factors dimension. Hardware and Procedures are familiar territory — equipment either works or it doesn't, a procedure is either followed or it isn't. Human Factors asks something harder: why did a competent crew member's performance fall short, or exceed expectations, on a given day?

This lesson explains what the Human Factors dimension actually assesses, what a PIF is, the nine categories inspectors use, and what it means for how your crew should prepare.

What "Human Factors" Means in SIRE 2.0

OCIMF defines human factors as the physical, psychological, and social characteristics that affect how people interact with equipment, systems, processes, and each other. In plainer terms: it's an acknowledgment that the people operating a vessel are part of the safety system, not separate from it — and that even competent, well-trained crew can be set up to succeed or set up to fail by the conditions around them.

That last point is the one worth sitting with. SIRE 2.0's Human Factors dimension isn't designed to catch out individuals. It's designed to surface the underlying Performance Influencing Factors — conditions that make errors more or less likely — so operators can fix the condition, not just discipline the person.

What a PIF Actually Is

A Performance Influencing Factor, or PIF, is one of nine defined categories OCIMF's inspectors use to explain why a piece of crew performance was rated above or below expectations. When an inspector logs a rating of "Exceeds Expectations" or "Not as Expected" against a Human Factors question, they're required to tag which PIF or PIFs were relevant — creating a documented link between an individual observation and a broader, fixable condition.

The nine categories, in the way IMT's training team typically explains them to crews, are:

• Recognition of safety criticality — whether a crew member correctly understands how important a given task is to safety.
• Custom and practice around procedures — whether the way a task is actually done on board matches what's written, and why any gap exists.
• Procedure accessibility and accuracy — whether the written procedure is easy to find, current, and actually usable in the moment it's needed.
• Team dynamics and communication — how well information moves between crew members during a task.
• Stress, workload, and fatigue — whether a crew member had the capacity to perform the task well at that moment.
• Morale and motivation — whether crew are engaged enough with the task to perform it carefully rather than mechanically.
• Competence, training, and experience — whether the crew member has genuinely been equipped to do the task, not just nominally qualified for it.
• Workplace ergonomics — the physical environment around the task: signage, layout, noise, lighting, heat, and similar factors.
• Human-machine interface — how intuitively controls, alarms, and displays support the person using them.

Notice how few of these are really about an individual's competence in isolation. Most describe a condition an operator can change — a procedure that's hard to find, a control panel that's badly labelled, a watch schedule that leaves no margin for fatigue.

How Inspectors Actually Assess This

Every Human Factors question in a CVIQ is graded on the same four-tier scale used across SIRE 2.0: Exceeds Expectations, As Expected, Largely as Expected, or Not as Expected. When a rating lands at either end — clearly exceeding or clearly falling short — the inspector must identify which PIF or PIFs explain it.

In practice, this means an inspector will ask a crew member to talk through their reasoning, not just demonstrate the action. A question that looks like a simple procedural check on the surface — "walk me through how you'd respond to X" — is often really a Human Factors question in disguise, testing recognition of safety criticality and procedure accessibility at the same time.

OCIMF's guidance is also explicit that this isn't a naming exercise. Inspectors refer to rank groupings — senior deck officer, junior engineer officer, ratings, and so on — rather than individuals, and the intent is to identify systemic conditions, not to build a case against a particular crew member.

Why This Dimension Trips Up Well-Prepared Crews

IMT sees a specific pattern with crews who are otherwise well prepared for SIRE 2.0: they know the hardware and procedures cold, but stumble on Human Factors questions because they've never practiced explaining their reasoning out loud. Technical competence and the ability to articulate that competence under questioning are different skills, and only one of them gets tested in day-to-day operations.

The other common trip point is environmental. A crew can be fully competent and still generate a "Not as Expected" rating tied to workplace ergonomics or human-machine interface — factors that have nothing to do with the individual and everything to do with equipment layout or signage the operator hasn't addressed.

What This Means for Crew Preparation

Practical steps IMT recommends specifically for the Human Factors dimension:

• Practice "explain your reasoning" drills, not just task completion — the goal is fluency in articulating why, not just competence in doing.
• Walk the vessel looking specifically for ergonomic and human-machine interface issues: unclear signage, poorly lit control areas, confusing alarm layouts.
• Review watch schedules honestly for fatigue risk before an inspection window, rather than after a Human Factors observation flags it.
• Make sure procedures are genuinely accessible where they're needed, not just filed correctly in a binder that stays in the officer's cabin.

Common Misunderstandings About PIFs

• Treating a Human Factors observation as a personal failing rather than a systemic condition to fix.
• Assuming Human Factors questions are only for senior officers — any rank grouping can generate a PIF-tagged observation.
• Focusing preparation entirely on technical knowledge while ignoring ergonomics and interface design, which are just as often the actual root cause.
• Not realising that "Exceeds Expectations" also gets PIF-tagged — this dimension records what's going right, not only what's going wrong.

Frequently Asked Questions