MTU: Unit of Measure
Entity Relationship Diagram for Epicentre V3.0 Data Model Copyright (C) 2001 POSC, All Rights Reserved.
first_unit Each ref_uom_custom_conversion must have as the first unit one and only one ref_customary_unit_of_measure. first_custom_conversion Each ref_customary_unit_of_measure may be the first unit converted by one or more ref_uom_custom_conversion. second_unit Each ref_uom_custom_conversion must have as the second unit one and only one ref_customary_unit_of_measure. second_custom_conversion Each ref_customary_unit_of_measure may be the second unit converted by one or more ref_uom_custom_conversion. first_unit Each ref_uom_si_conversion must have as the first unit one and only one ref_customary_unit_of_measure. first_si_conversion Each ref_customary_unit_of_measure may be converted by one and only one ref_uom_si_conversion. second_unit Each ref_uom_si_conversion must have as the second unit one and only one ref_si_unit_of_measure. ref_uom_si_conversion Each ref_si_unit_of_measure may be converted by one or more ref_uom_si_conversion. ref_base_si_unit Each ref_si_derived_base_element must be specified as one and only one ref_base_si_unit. ref_si_derived_base_element Each ref_base_si_unit may specify one or more ref_si_derived_base_element. ref_derived_si_unit Each ref_si_derived_base_element must be part of one and only one ref_derived_si_unit. ref_si_derived_base_element Each ref_derived_si_unit may have one or more ref_si_derived_base_element. ref_base_si_unit ref_customary_unit_of_measure ref_derived_si_unit ref_si_derived_base_element ref_si_unit_of_measure ref_unit_of_measure ref_unit_of_measure_conversion ref_uom_custom_conversion ref_uom_si_conversion