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Glossary

Maritime maintenance, explained.

The vocabulary of ship maintenance, vessel–shore data and marine AI — in plain English.

A

Alarm & Monitoring SystemAMS: The onboard system that monitors machinery parameters and raises alarms.

C

Condition-Based MaintenanceCBM: Maintenance triggered by the measured condition of equipment rather than a fixed interval.
Critical Spares: Spare parts whose absence would stop essential equipment, tracked per equipment item.

D

Daily Machinery ReportDMR: The daily record of position, machinery hours, consumption, conditions and exceptions from a vessel.

I

ISM Code: The International Safety Management Code, which requires a documented safety management system including ship maintenance.

J

Job Library: The central catalogue of maintenance jobs, schedules and resources shared across a fleet.

M

Maintenance Postponement: A controlled request to defer a due work order, approved or rejected by shore.

N

Noon Report: A daily vessel report, traditionally sent at noon, covering position, speed, consumption and conditions.

O

Offline-First: A software design where the application works fully without a network and synchronises when one is available.

P

Planned Maintenance SystemPMS: The structured system a ship operator uses to plan, execute and record maintenance on every item of equipment.

R

Retrieval-Augmented GenerationRAG: An AI technique that retrieves relevant passages from approved documents and writes answers grounded in them.
Running Hours: The accumulated operating time of machinery, used to schedule counter-based maintenance.

S

Standard JobSJ: A reusable description of a maintenance task, attached to equipment and a schedule.

T

Technical Superintendent: The shore-based engineer responsible for the technical condition, maintenance and budget of a group of vessels.

V

Vessel–Shore Synchronization: Exchanging data between a ship's local systems and the shore office over intermittent links.

W

Work OrderWO: An actionable maintenance task generated when a scheduled job falls due, or raised for corrective work.

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