Functionality level 1 
Functionality level 2 
Function 
Input information 
Output information 
3.1.3 Assess comparison 
• Output information from 3.1.2 
• Limit value for deviation 
• Statement whether set/actual deviation is within 
the limits 
3.1.4 Provide result 
• Output information from 3.1.2 
• Output information from 3.1.3 
• Output of set/actual deviations for the user 
• Provision of deviations for use by other function 
alities 
3.2 Monitoring of SOG 
3.2.1 Record set and ac 
tual values 
• Actual value for speed over 
ground 
• Set value for speed over ground 
• Necessary input information is available 
3.2.2 Compare data 
• Output information from 3.2.1 
• Difference between set and actual value 
3.2.3 Assess comparison 
• Output information from 3.2.2 
• Limit value for deviation 
• Statement whether set/actual deviation is within 
the limits 
3.2.4 Provide result 
• Output information from 3.2.2 
• Output information from 3.2.3 
• Output of set/actual deviations for the user 
• Provision of deviations for use by other function 
alities