Appendix 2 - Navigation-Related Terminology and Icons Of Functions (Hot Keys and Shortcuts)
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1609 - Guidelines for the Standardization of User Interface Design for Navigation Equipment – (14 June 2019) - Appendix 2 - Navigation-Related Terminology and Icons Of Functions (Hot Keys and Shortcuts)

Appendix 2 - Navigation-Related Terminology and Icons Of Functions (Hot Keys and Shortcuts)

 Introduction

1 This appendix identifies commonly-used functions on navigation equipment and for each function specifies the associated terminology, abbreviation and (where appropriate) icons. These terms, abbreviations and icons, if available, are recommended to be used for the display of navigation-related information, to promote consistency of presentation across navigational equipment.

2 Where icons, terms and/or abbreviations are used, they must meet the requirements of this appendix. Where a standard term, abbreviation, or icon is not available, another icon, term or abbreviation may be used, but these should not conflict with those listed in the appendix.

3 The icons specified may indicate a status, may execute a specific function (hot key), or may provide access to a group of related functions (shortcut).

4 Only the shape of the icon is specified; this appendix does not specify a colour scheme for icons, except for the icons depicted in colour in table 2 which should follow the IHO colour scheme or similar.

5 Where appropriate and practical, a brief explanation of the purpose of an icon should be easily obtainable by the user. This functionality should be able to be turned off easily by the user.

Icons and terminology for functions (hot keys)

Table 1: General navigation functions

Explanation Term Abbreviation Icon (hot key)
To set panel illumination Panel illumination PANEL footnote
To set display brilliance Display brilliance BRILL footnote
To select ECDIS mode (for multifunction displays) ECDIS ECDIS
To select radar mode (for multifunction displays) Radar RADAR
To select Conning display or to select "navigation control data" task of the INS (for multifunction displays) Conning CONN
To select CAM-HMI as defined in Bridge Alert Management (BAM) (for example as required by INS) CAM-HMI CAM
To select North Up display North Up N UP
To select Head Up display Head Up H UP
To select Course Up display Course Up C UP
To select True Motion mode True Motion TM
To select Relative Motion mode Relative Motion RM
To select ship centred Mode Centred CENT
To select ship off centred Mode Off centred OFF CENT
To perform True Motion reset TM reset TM RESET
To select range Range RANGE
To perform range up (Radar) or to zoom in (ECDIS) Up/In +
To perform range down (Radar) or to zoom out (ECDIS) Down/Out -
To identify the "heading line" off position Heading Line Off HL OFF
To toggle Range Rings on and off Range Rings RR
To set Variable Range Marker Variable Range Marker VRM
To set Electronic Bearing Line Electronic Bearing Line ERBL
To perform Target Acquire Acquire ACQ
To perform selection (for example, target or chart object) Select SEL
To call up the information associated with an object by cursor selection on its symbol Info report INFO REPORT
To perform target cancellation Cancel CNCL
To perform cancellation of all targets Cancel all CNCL ALL
To acknowledge an alert Acknowledge ACK
To temporarily silence alerts Silence SLNC
To record or log an event or occurrence Record Event REC EVENT
Select default settings Default settings DFLT SET
Select user settings Select user settings USR SET
Save user settings Save user settings SAVE USR
To select standard display for chart symbol Standard Display STND DISP
To execute Trial Manoeuvre Trial manoeuvre TRIAL
To toggle Day/Night/Dusk mode Day / Night DAY / NT
To plot own ship position manually Line of Position LOP
To toggle True/Relative Vector mode True/Relative Vector T/R VECT
Toggle On/Off AIS Automatic Identification System contacts on/off AIS
To "status and data display" tasks of the INS Status and Data STAT DISP

Table 2: Control of chart display functions

Explanation Term Abbreviation Hydrographic symbol Icon (hot key)
To show accuracy related symbols Accuracy CATZOC
Selector for viewing group layer All isolated dangers ISODNG
Archipelagic sea lanes ASL
Boundaries and limits BNDLIM
Buoys, beacons, aids to navigation ATON
Cautionary notes CTNNTE
Chart boundary shown Chart boundary CHTBND
Selector for viewing group layer Chart scale boundaries CHTSCA
To show contour labels Contour label CNTLBL
Deep contour Deep contour DEEPCNT  
Selector for viewing group layer Display base DISPBASE  
Use four shades Four shades 4SHADE
Selector for full light sector lines Full light lines FULLSEC
Show date dependent object Highlight date dependent DATEDEP
Show symbol for INFORM and NINFOM Highlight info INFHLT
Show symbol for TXTDSC, NTXDS and PICREP Highlight document DOCHLT
Selector for viewing group layer Important text IMPTXT  
Other text OTHTXT  
Magnetic variation MAGVAR
Miscellaneous MISC  
Show national language NOBJNM, text group 2 National language NATLANG
Selection for point object style Paper chart symbols SIMPSYM
Simplified symbols PLNBND
Selection for line style Plain boundaries PLNBND
Symbolized boundaries SYMBND
Selector for viewing group layer Prohibited and restricted areas PRBAREA
Selector for viewing group layer Drying line DRYLNE  
To select safety contour Safety contour SF CNT  
Shallow contour Shallow contour SHAL CNT  
Depths in safety area shown, soundings in safe area shown Safe depths shown SF DPTH SHOW
To select safety depth Safety depth SF DPTH  
To turn SCAMIN off Scale min SCAMIN  
Selector for viewing group layer Seabed SEABED
To show shallow pattern Shallow pattern SHALPAT
To show isolated dangers in shallow waters Shallow water dangers SHALDNG
Selector for viewing group layer Ships' routeing systems and ferry routes ROUTEING
Spot soundings SPOTSND
Submarine cables and pipelines SUBCAB
Tidal TIDAL
Two shades 2SHADE
Selector for displaying unknown objects Unknown UNKNOWN
To highlight objects which have undergone modification Update review UPD REV

Table 3: Control of chart functionality

Explanation Term Abbreviation Icon (hot key)
To select a date or date range for displaying all chart objects active at that date and time Dated Objects DATE OBJ
To toggle latitude/longitude grid Grid GRID
To perform manual update Manual update MAN UPD
To toggle radar overlay Radar overlay RADAR OVR

Table 4: Database functions

Functionfootnote Term Abbreviation Icon (Hot Key)
To import ENC Import Chart IMPORT CHT Not applicable
To review ENC updates Update review UPD REV Not applicable
To view ENC update summary report Update summary UPD SUM Not applicable
To view graphical index of ENC charts Graphical index GRAPH INDX Not applicable
To view ENC update log Update log UPD LOG Not applicable
To view ENC Update Status Report ENC Update Status Report ENC UPD STATUS Not applicable
To view ENC Management Report ENC Management Report ENC MGMT REP Not applicable

Table 5: Route plan and monitoring functions

Function Term Abbreviation Icon (Hot Key)
To export route plan Export Route ROUTE EXP
To import route plan Import Route ROUTE IMP
To set own-ship look ahead Own ship look-ahead LOOK AHEAD Not applicable

Icons and terminology for groups of functions (shortcuts)

Table 6: Groups of functions

Group of functions Term Abbreviation Icon (shortcut)
To set collision avoidance limits and other target-related parameters (including CPA, TCPA, etc.) Target settings TGT SET
To set radar controls (including tunings, anti-clutter, etc.) Radar settings RADAR SET
To set chart related limits and other chart-related parameters (including safety contour, safety depth, areas with special conditions, own ship check area, etc.) Chart safety settings CHT SF SET
To set trial manoeuvre parameters Trial Settings TRIAL SET
To add or remove information from the ECDIS display Chart display settings CHT DISP SET
To provide additional mariner's information User Chart USR CHT
To access route plan functionality Route plan ROUTE PLAN
To access route monitoring functionality Route monitoring ROUTE MON
To access management chart database Chart management CHT MGMT
To access alert setting management Alert Setting ALERT SET
Parent topic: MSC.1/Circular.1609 - Guidelines for the Standardization of User Interface Design for Navigation Equipment – (14 June 2019)
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