CT1: Earth Features
Entity Relationship Diagram for Epicentre V3.0 Data Model Copyright (C) 2001 POSC, All Rights Reserved.
business_associate Each exploration_area may be defined by one and only one business_associate. exploration_area Each business_associate may define one or more exploration_area. child Each naming_system may be the parent of one or more naming_system. parent Each naming_system may be a child of one and only one naming_system. naming_system Each naming_system_area must defined for one and only one naming_system. defined_areas Each naming_system may be defined within one or more naming_system_area. business_associate Each business_assoc_earth_ftr_role must be defined within one and only one business_associate. business_assoc_earth_ftr_role Each business_associate may participate one or more business_assoc_earth_ftr_role. child_class Each earth_feature_class may be the generalization of one or more earth_feature_class. parent_class Each earth_feature_class may be a specialization of one and only one earth_feature_class. be_classified_as Each earth_feature_class_clsn must be classified as one and only one earth_feature_class. classify Each earth_feature_class may classify one and only one earth_feature_class_clsn. have_as_a_member Each earth_feature_class_clsn must have as a member one and only one earth_feature_class. be_a_member_of Each earth_feature_class may be a member of one or more earth_feature_class_clsn. unique_part Each earth_feature may identify one or more earth_feature. unique_within Each earth_feature may be identified within one and only one earth_feature. aliased_object Each earth_feature_alias must identify one and only one earth_feature. earth_feature_alias Each earth_feature may be known by one or more earth_feature_alias. kind Each earth_feature may be fundamentally defined by one and only one earth_feature_class. earth_feature Each earth_feature_class may define the nature of one or more earth_feature. earth_feature Each naming_system_area must defined as one and only one earth_feature. defined_naming_systems Each earth_feature may define one or more naming_system_area. naming_system Each earth_feature may have name specified by one and only one naming_system. earth_feature Each naming_system may be referenced by one or more earth_feature. earth_feature Each business_assoc_earth_ftr_role must be defined for one and only one earth_feature. business_assoc_earth_ftr_role Each earth_feature may have one or more business_assoc_earth_ftr_role. earth_feature_class Each earth_feature_classification may specify as the class one and only one earth_feature_class. earth_feature_classification Each earth_feature_class may classify one or more earth_feature_classification. earth_feature Each earth_feature_classification must classify as a member one and only one earth_feature. earth_feature_classification Each earth_feature may be classified by one or more earth_feature_classification. material_class Each earth_feature_classification may specify as the class one and only one material_class. earth_feature_members Each material_class may be the class for one or more earth_feature_classification. business_assoc_earth_ftr_role business_associate damage_area discovery_area earth_feature earth_feature_alias earth_feature_class earth_feature_class_clsn earth_feature_classification earth_parcel exploration_area field geodetic_zone geographic_feature geologic_feature geologic_province geophysical_acquisition_area geophysical_geometry_segment geophysical_geometry_set geophysical_point geophysical_processing_grid geopolitical_border geopolitical_boundary geopolitical_feature leaseable_earth_feature legal_survey_area legal_survey_feature magnetic_polarity_zone material_class mineral_zone naming_system naming_system_area pressure_measurement_datum regulatory_area seismic_traverse technical_earth_feature