Consistent integration of heterogeneous data bases

摘要

Planning and controlling of routing of intermodal transportation (e.g. continent-wide in Europe) has to consider heterogeneous restrictions prescribed by the ordering company or institution, by the involved carriers, unloaders, warehouses, authorities or receivers of the complete logistic chain. This often implies cascaded queries to and transactions through heterogeneous and geographically disclosed data bases in different countries. The logical consistency of these transactions is based on the constraint propagation and satisfaction along their implementation. An object-oriented approach for, is the concept of Aspect-Oriented Programming to inherit interfaces between objects (or object classes) through the whole transaction. This new concept is adapted to heterogeneous traffic data bases in routing tasks.