Chapter 3 provides a summary of the model contained in the annexes. The classification of the model is 
presented here, which follows the classification in tasks, functionalities and functions, as presented in 
part A. The annex contains the complete model of the integrated navigation process. The classification 
of the annex follows the approach of structured system analysis, which provides differing sub-models for 
the modelling of various aspects of the model concerned (see Section 2).