Functionality level 1 
Functionality level 2 
Function 
Input information 
Output information 
1.3 Monitoring planned 
course changes 
1.3.1 Record set and ac 
tual values 
• Actual position 
• Actual values for ROT, turning 
radius, rudder angle 
• Ref. track (at least last way 
polnt/course changing point/next 
way point) 
• Ref. value for turning radius or 
ROT at course changing point 
• Manoeuvring limits (max. rudder 
position/max. ROT) 
• Graphic representation of position and move 
ment of ship in track section considered 
• Representation of preset values for manoeuvre 
at course changing point 
• Representation of manoeuvring limits 
1.3.2 Compare data 
• Output information from 1.3.1 
• Difference between position/movement and 
given track geometry 
• Deviation between actual and set values for 
turning radius or ROT 
• Difference between actual values for 
ROT/rudder position and manoeuvring limits 
1.3.3 Assess comparison 
• Output information from 1.3.2 
• Statement whether position/movement of ship is 
within the limits 
• Statement whether set/actual deviation of ROT 
or turning radius is within given limits 
• Statement whether actual values for ROT/rudder 
position are within given manoeuvring limits 
1.3.4 Provide result 
• Output information from 1.3.2 
• Output information from 1.3.3 
• Output of set/actual deviations for the user 
• Provision of deviations for use by other function 
alities 
2. Monitoring of course and 
heading 
2.1 Monitoring the 
heading 
2.1.1 Record set and ac 
tual values 
• Actual value for heading 
• Set value for heading 
• Necessary input information is available 
2.1.2 Compare data 
• Output information from 2.1.1 
• Difference between ref. and actual value 
2.1.3 Assess comparison 
• Output information from 2.1.2 
• Limit value for deviation 
• Statement whether set/actual deviation is within 
the limits 
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