engleski

Using Temporal Database for Representation and Reasoning in Maritime Applications

Continued data processing, data extraction and data analysis assist the European Commission’s monitoring of the implementation of EU legislation. This includes the development of methodologies to create aggregated information from existing data sources. Aggregated search activities can include up to date and historical information data relating to vessel characteristics, ship movements, vessels involved in incidents or transportation of cargoes. It is application domain where it is needed to reconstruct earlier database states or even store future database states. The different database states are have to be stored as temporal data. Conventional databases and their implementations as database management systems (DBMS) are not the best solution. The reason is that these databases represent the state of particular system at a single moment of time. They support modification operations which facilitate the transition from one consistent database state to another. It is also possible in practice to store timestamps in classical DBMS and model the temporal aspects mentioned above in this way. This paper proposes different approach to managing temporal data. This approach timestamps data by extending the data structures with special timestamp attributes. The result is temporal relation data model for the provision and access of maritime information.

historical information, maritime data, temporal database, ATSQL

nije evidentirano