This entity holds aliases for activity classes. For example, DST might be an alias for the activity class of "Drill Stem Test".

classification_system (M, K: classification_system(activity_class_alias))

This defines the classification system that provides the context within which this alias has meaning. Each activity_class_alias must be defined by one classification_system.


name (M, K: ndt_long_name)

The name of this alias of activity class.


activity_class (M, K: activity_class(activity_class_alias))

The activity class for which this instance is an alias. For example, DST might be an alias for the activity class "Drill Stem Test" Each activity_class_alias must provide an alias for one activity_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 activity_class_alias must provided by one ref_source. Inherited from reference_behavior.


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.


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

Indicates the data collections that include this instance of E and P data. Each activity_class_alias 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 activity_class_alias 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 activity_class_alias may be depicted by one or more graphical_element. Inherited from e_and_p_data.


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 activity_class_alias may object of ranking one or more object_ranking. Inherited from object_of_interest.


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 activity_class_alias 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 activity_class_alias may version one ref_epicentre_version. Inherited from reference_behavior.

Local rules:

Uniqueness Constraint
classification_system, name, activity_class
Supertype path(s):
e_and_p_data > object_of_interest > technical_object > activity_class_alias.
reference_behavior > activity_class_alias.

Entity projects as table ACT_CLS_ALIAS.

Referenced in Diagrams:

• HL6: Class Aliasing (0705, 1132)