ABSTRACT
Three conceptual models of a 3D cadastre (the registration of right-volumes, 3D physical objects, and the registration of volume parcels) were completed in Chapter 9. The considerations for translating these conceptual models into logical models for an object relational database structure were described in Chapter 10. To evaluate the conceptual models, the two logical models of the hybrid cadastre (the registration of right-volumes and the registration of 3D physical objects) were populated with data concerning the Dutch 3D property situations introduced in Chapter 3. The logical model for the combined 2D/3D alternative of the full 3D cadastre (volume parcels and infinite parcel columns) was populated with data concerning the case study from Queensland, Australia introduced in Chapter 3. The reason for this was that the legal doctrine in Queensland provides already the possibility of establishing multilevel ownership, while in the Netherlands the property to real estate is still land (surface) oriented, as in the hybrid case. Therefore, the prototype implementations resulted in an evaluation of possibilities and constraints of all three proposed conceptual models.
