Abstract
Navigation-assistance systems using feature-based geographic Electronic Navigation Chart (ENC) data are widely employed to help ensure the safety of vessels and their crews. ENC data consist of descriptions of the characteristics of features along with geographic information on them. Because they are created and delivered according to the IHO standards, they are encoded in data transfer formats such as ISO/IEC 8211; thus, they need subsequently to be converted to the data format and structures of the system that will use them. Specifically, preparatory to their effective utilization, it is necessary to store and manage ENC data sets according to their relevant characteristics. In this paper, we present a system architecture for effective management of ENC data sets. We define the system's data structures and design modules.
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