This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance. Inherited from e_and_p_data.
This is the person, company or application that created this instance. This identifies the party responsible for loading this instance. Inherited from e_and_p_data.
This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships). Inherited from e_and_p_data.
The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC". Inherited from e_and_p_data.
This is the original source of the data. This is the person, company or application that defined or specified the data (content) for this instance and is considered to be responsible for it. For example, POSC, EPSG, API, ISO, etc. This may be the same as or different from the provider of the instance (e.g., POSC). Inherited from ref_aliasable_data.
The reference used by source to provide the standard instance, such as Petroleum Industry Data Dictionary (PIDD), Websters Ninth New Collegiate Dictionary, etc. Inherited from ref_aliasable_data.
The status of this instance in the version of Epicentre running in a data store. This is an enumerated datatype for which the following are the possible values: current, provisional, deprecated. Current - use without restriction. Provisional - use with caution, this value is for comment and may not appear in future releases of Epicentre. Deprecated - avoid use if possible, it is planned to remove this value in the next major release of Epicentre. Inherited from ref_aliasable_data.
These are the quantity types for which this units of measure is appropriate. Each ref_derived_si_unit may be alternative unit for one or more quantity_type_alternative. Inherited from ref_unit_of_measure.
Indicates the various identifiers by which this data is known. Each ref_derived_si_unit may be known by one or more code_alias. Inherited from ref_aliasable_data.
This is the set of coordinate system axes which are constrained to use this unit of measure. Each ref_derived_si_unit may constrain one or more coordinate_system_axis. Inherited from ref_unit_of_measure.
Indicates the data collections that include this instance of E and P data. Each ref_derived_si_unit may be a member of one or more data_collection_content. Inherited from e_and_p_data.
These are the document specification parts that include this data value and define its meaning within a document specification. Each use may define a different meaning, and many uses are allowed. Each ref_derived_si_unit may be included in one or more document_information_content. Inherited from e_and_p_data.
Specifies one or more graphical elements which are depicting this data item. Each ref_derived_si_unit may be depicted by one or more graphical_element. Inherited from e_and_p_data.
These are the instances which utilize the semantics of this instance. Each ref_derived_si_unit may be referenced by one or more isoline_set. Inherited from ref_unit_of_measure.
The naming system in which the identifier is specified and determined to be unique. Each ref_derived_si_unit may have name specified by one naming_system. Inherited from ref_aliasable_data.
The set of OpenGIS formatted geometries which are specified in this unit of measure. Each ref_derived_si_unit may specify values for one or more pty_geometry_2d_gis. Inherited from ref_unit_of_measure.
These are the quantity types which use this unit of measure for its range lower and range upper values. Each ref_derived_si_unit may be range unit for one or more ref_quantity_type. Inherited from ref_unit_of_measure.
This defines the set of conversions where this unit is used to convert to and from customary units of measure. Each ref_derived_si_unit may be converted by one or more ref_uom_si_conversion. Inherited from ref_si_unit_of_measure.
This is the transformation that specifies this unit for source offsets. Each ref_derived_si_unit may be the source unit for one or more coordinate_transformation. Inherited from ref_unit_of_measure.
This is the transformation that specifies this unit for target offsets. Each ref_derived_si_unit may be the target unit for one or more coordinate_transformation. Inherited from ref_unit_of_measure.
This describes the version of this instance as defined by the provider. Each ref_derived_si_unit may version one ref_version. Inherited from ref_aliasable_data.