POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
This entity describes the connection between two wellbore component facilities. It is not necessary to use this entity to describe components connected together to form an assembly, as the parts and assembly list relationship on wellbore component facility can be understood to contain this. Rather this should be used where, for example, two wellbore_component_facilities that are both assemblies are connected together, without one becoming part of the other.
- wellbore_component_facility (M, K: wellbore_component_facility(connected_to))
- This is the designated wellbore_component_facility that this connection is described for. For example, to describe a packer connected to a casing_string, this attribute points to the packer. Each wellbore_component_fcl_conn must connected to one wellbore_component_facility.
- connected_with (M, K: wellbore_component_facility(connected_from))
- This is the other wellbore_component_facility that is connected to the designated wellbore_component_facility. To describe a packer connected to a casing_string, this attribute points to the casing_string. Each wellbore_component_fcl_conn must connected from one wellbore_component_facility.
- start_time (O, K, I: ndt_date_tod)
- Start time of the association. Inherited from transient_association.
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- duration (O, I: ndt_time)
- Defines the duration of the association expressed in any valid units of time. Inherited from transient_association.
- end_time (O, I: ndt_date_tod)
- End time of the association. Inherited from transient_association.
- instance_create_date (O, I: ndt_date_tod) (C126)
- 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.
- instance_creator (O, I: ndt_identifier) (C126)
- 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.
- is_current (O, I: ndt_boolean) (C137)
- When TRUE, this flag indicates that this instance is designated as a current instance. This flag can be used in place of time based attributes or can be used in conjunction with them; however, it should not conflict with them. Inherited from transient_association.
- last_updated (O, I: ndt_date_tod) (C126)
- 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.
- last_updated_by (O, I: ndt_identifier) (C126)
- This records the person or application making the update to this instance. Inherited from e_and_p_data.
- source (O, I: ndt_identifier) (C126)
- 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.
- caused_by (O, I: activity(cause_association))
- Specifies the activity which establishes this association. Each wellbore_component_fcl_conn may be caused by one activity. Inherited from transient_association.
- data_collection (I, V: SET[0:?] data_collection_content(collection_part)) (C020)
- Indicates the data collections that include this instance of E and P data. Each wellbore_component_fcl_conn may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- document_information_content (I, V: SET[0:?] document_information_content(e_and_p_data)) (C136)
- 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 wellbore_component_fcl_conn may be included in one or more document_information_content. Inherited from e_and_p_data.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each wellbore_component_fcl_conn may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- kind (O: ref_wellbore_cmpnt_fcl_conn(wellbore_component_fcl_conn))
- The kind or type of wellbore component facility connection. For example, this might be "inside", "outside", "above" or "below". Each wellbore_component_fcl_conn may kind one ref_wellbore_cmpnt_fcl_conn.
- ref_transient_period (O, I: ref_transient_period(transient_association)) (C138)
- The type of period over which the property applies, such as day, month, quarter, cumulative, etc. Each wellbore_component_fcl_conn may represent a period of one ref_transient_period. Inherited from transient_association.
- terminated_by (O, I: activity(terminate_association))
- Specifies the activity which established the termination of a transient association between two objects. Each wellbore_component_fcl_conn may be terminated by one activity. Inherited from transient_association.
Local rules:
- Uniqueness Constraint
- wellbore_component_facility, connected_with, start_time
- [I: transient_association] Instance Value Constraint (C050)
-
If REF_TRANSIENT_PERIOD is either YEAR TO DATE, MONTH TO DATE or CUMULATIVE, then END_TIME must be instantiated.
- [I: transient_association] Instance Value Constraint (C050)
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If REF_TRANSIENT_PERIOD is ANNUAL, SEMIANNUAL, QUARTER, MONTHLY, DAILY, or HOURLY, then either both START_TIME and END_TIME are blank or both must be instantiated.
- [I: transient_association] Instance Value Constraint (C050)
-
If REF_TRANSIENT_PERIOD is EVENT, then both START_TIME and END_TIME must either be blank or be identical.
Supertype path(s):
Referenced in Diagrams:
Generated on Tue Jul 10 15:55:44 2001
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