Class tools can be useful. They sit close to the reviewer, use familiar terminology, and may fit a vessel that stays inside one class ecosystem. But an operator’s IHM record has a broader job than satisfying one portal.

The underlying record has to survive class reviews, flag questions, PSC checks, management reporting, vessel handover, and sometimes a change of class or manager.

Quick answer

Use a class-specific tool when it makes a particular class review easier. Use independent IHM software when the operator needs one live, class-agnostic vessel record across mixed vessels, suppliers, managers, flags, and review situations.

MANTIS inventory screen showing a class-agnostic vessel record
Independent software should keep the operator-owned IHM record usable across class, flag, PSC, management, and handover contexts.

What class tools are good at

Class-specific tools often work well when:

For a single-class fleet, this can reduce friction.

Where independent software fits

Independent IHM software fits when the operator needs control of the live record across contexts:

Need Why independent software helps
Mixed class or mixed flag vessels One workflow across the fleet
Supplier MD/SDoC collection Evidence workflow is operator-owned
Internal management reporting Same record supports office review
PSC preparation Export evidence without portal dependency
Handover Record stays with the vessel/team

The point is not to replace class. Class and flag remain responsible for verification. The point is to keep the operational record clean before anyone asks to review it.

Avoid portal lock-in

An IHM record is a long-life compliance asset. It should not become unusable because the vessel changes class, changes manager, or needs to present evidence outside a particular platform.

Ask whether the system lets you:

If not, the tool may solve a narrow review problem while leaving the operator’s maintenance problem untouched.

Common decision mistakes

Mistake Why it creates risk
Choosing only for the next class review The record still has to support PSC, flag, management, and handover.
Treating the portal as the source record Evidence can become hard to export or reuse outside that ecosystem.
Ignoring mixed-fleet reality Different vessels may need different review pathways but the same office workflow.
Forgetting supplier evidence A clean certificate view does not solve MD/SDoC collection by itself.

The practical answer

Use class tools when they help the review. Use independent IHM software to maintain the vessel’s live record day to day.

The cleaner the operator-owned record is, the easier every class, flag, PSC, or management conversation becomes.

Related reading:

Keep the live IHM record outside a single portal.

MANTIS is class-agnostic IHM software. It helps operators maintain the live record, collect supplier evidence, track certificates, and export survey-ready proof.

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MANTIS software screen for IHM records and evidence management