Appendix 1 – Definitions
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Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.302(87) – Adoption of Performance Standards for Bridge Alert Management – (Adopted on 17th May 2010) - Annex – Performance Standards for Bridge Alert Management - Appendix 1 – Definitions

Appendix 1 – Definitions

Aggregated alert Alert indicating the existence of multiple individual alerts.
Aggregation Combination of individual alerts to provide one alert (one alert represents plenty of individual alerts).
Alarm An alarm is a high-priority alert. Condition requiring immediate attention and action by the bridge team, to maintain the safe navigation of the ship.
Alert Alerts are announcing abnormal situations and conditions requiring attention. Alerts are divided in four priorities: emergency alarms, alarms, warnings and cautions. An alert provides information about a defined state change in connection with information about how to announce this event in a defined way to the system and the operator.
Alert announcements Visual and acoustical presentation of alerts.
Alert history list Accessible list of past alerts.
Alert management Concept for the harmonized regulation of the monitoring, handling, distribution and presentation of alerts on the bridge.
Bridge Alert Management (BAM) Overall concept for management, handling and harmonized presentation of alerts on the bridge.
Central Alert Management (CAM) Functionality for the management of the presentation of alerts on the CAM-HMI, the communication of alert states between CAM-HMI and navigational systems and sensors. The functions may be centralized or partly centralized in subsystems and interconnected via a standardized alert-related communication.
Category A alerts Alerts for which graphical information at the task station directly assigned to the function generating the alert is necessary, as decision support for the evaluation of the alert-related condition.
Category B alerts Alerts where no additional information for decision support is necessary besides the information which can be presented at the CAM-HMI.
Category C alerts Alerts that cannot be acknowledged on the bridge but for which information is required about the status and treatment of the alert.
Caution Lowest priority of an alert. Awareness of a condition which does not warrant an alarm or warning condition, but still requires attention out of the ordinary consideration of the situation or of given information.
Central alert management HMI (CAM-HMI) Human machine interface for presentation and handling of alerts on the bridge.
Cluster Group of functions on a high level, e.g., navigation, automation.
Emergency alarm Highest priority of an alert. Alarms which indicate immediate danger to human life or to the ship and its machinery exits and require immediate action.
Failure analysis The logical, systematic examination of an item, including its diagrams or formulas, to identify and analyse the probability, causes and consequences of potential and real failures.
Grouping Arrangement of alerts in terms of their function or priority.
Human machine interface (HMI) The part of a system an operator interacts with. The interface is the aggregate of means by which the users interact with a machine, device, and system (the system). The interface provides means for input, allowing the users to control the system and output, allowing the system to inform the users.
Individual alerts Alerts announcing one abnormal situation and condition requiring attention.
Multifunction display A single visual display unit that can present, either simultaneously or through a series of selectable pages, information from more than a single function.
Simple operator action A procedure achieved by no more than two hard-key or soft-key actions, excluding any necessary cursor movements, or voice actuation using programmed codes.
Single operator action A procedure achieved by no more than one hard-key or soft-key action, excluding any necessary cursor movements, or voice actuation using programmed codes.
Task station Multifunction display with dedicated controls providing the possibility to display and operate any tasks. A task station is part of a workstation.
Warning Condition requiring immediate attention, but no immediate action by the bridge team. Warnings are presented for precautionary reasons to make the bridge team aware of changed conditions which are not immediately hazardous, but may become so if no action is taken.
Parent topic: Annex – Performance Standards for Bridge Alert Management
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