A characterization which may be assigned to an object based on specification of a range of characteristics.

name (M: ndt_long_name) (1170)

The name given to the class.


source (M, I: ref_source)

The provider of this instance of reference information. If this instance is provided by POSC, then this attribute must be "POSC". Each classification_class must provided by one ref_source. Inherited from reference_behavior.


description (O: ndt_comment)

The description of this class, describing the criteria for exclusion and inclusion.


end_date (O: ndt_date)

The expiration of the class, after which the class is invalid.


start_date (O: ndt_date)

The date from which this class is valid.


status (O, I: ndt_instance_status) (0644)

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 reference_behavior.


classification_system (O: classification_system(classification_class))

The classification system with which this class is identified. Each classification_class may be a member of one classification_system.


data_collection (I, V: SET[0:?] data_collection(collection_content))

Indicates the data collections that include this instance of E and P data. Each classification_class may be a member of one or more data_collection. Inherited from e_and_p_data.


datum_for_ranking (I, V: SET[0:?] object_ranking(base_object))

Indicates that an object is being used as a basis for comparison with another object. Each classification_class may datum for ranking one or more object_ranking. Inherited from object_of_interest.


graphical_element (I, V: SET[0:?] graphical_element(depicted_object))

Specifies one or more graphical elements which are depicting this data item. Each classification_class may be depicted by one or more graphical_element. Inherited from e_and_p_data.


guideline_or_privilege (I, V: SET[0:?] guideline_or_privilege(subject_of_guideline_or_privilege))

These are the guidelines, limitations, regulations and privileges that are defined with respect to this class or typical. This relationship defines the guidelines, etc., that apply to the objects or activities to which this instance is assigned. Each classification_class may be the subject of one or more guideline_or_privilege. Inherited from subject_of_guideline_or_privilege.


object_of_ranking (I, V: SET[0:?] object_ranking(ranked_object))

Indicates that an object is being classified in a rank order based on its characteristics. Each classification_class may object of ranking one or more object_ranking. Inherited from object_of_interest.


pty_equipment_facility (V: SET[0:?] pty_equipment_facility(classification_class))

The properties describing ranges of characteristics for valid members of the class. Each classification_class may have a property of one or more pty_equipment_facility.


source_reference (O, I: ref_source_reference)

The reference used by source to provide the standard instance, such as Petroleum Industry Data Dictionary (PIDD), Websters Ninth New Collegiate Dictionary, etc. Each classification_class may documented by one ref_source_reference. Inherited from reference_behavior.


version (O, I: ref_epicentre_version) (0644)

Describes the version of Epicentre when this status was assigned to this instance of reference behavior Each classification_class may version one ref_epicentre_version. Inherited from reference_behavior.

Local rules:

Abstract supertype:
Each CLASSIFICATION_CLASS must be instantiated as one of its subtypes. These subtypes are: activity_class, boundary_class, document_specification_class, equipment_class, facility_class, hole_class, material_class, reserves_class, rock_fluid_feature_class, seismic_feature_class, seismic_geometry_class, uncertainty_class, well_log_trace_class
Supertype path(s):
subject_of_guideline_or_privilege > classification_class.
e_and_p_data > object_of_interest > technical_object > classification_class.
reference_behavior > classification_class.

Entity replicated into subtype tables (@classification_class).

Referenced in Diagrams:

• AC4: Activity Classes & Typicals
• EPR1: Guidelines and Privileges (1223)
• EQW4: Equipment Properties