POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
These standard instances in this reference entity contain the version number and description of releases of data from data providers. For example, an instance of ref_version may define "Epicentre V2.2" as the version of reference data.
- identifier (M, K: ndt_identifier)
- The name or label of a version of Epicentre. For example, 2.2.
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- 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.
- 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.
- release_date (O: ndt_date) (C126)
- This is the date when data for this version was released.
- 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.
- association_reference (V: SET[0:?] association_reference(version))
- These are the instances which utilize the semantics of this instance. Each ref_version may be referenced by one or more association_reference.
- 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 ref_version 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 ref_version may be included in one or more document_information_content. Inherited from e_and_p_data.
- earth_feature (V: SET[0:?] earth_feature(version))
- These are the instances which utilize the semantics of this instance. Each ref_version may be referenced by one or more earth_feature.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each ref_version may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- ref_aliasable_data (V: SET[0:?] ref_aliasable_data(version))
- These are the instances which utilize the semantics of this instance. Each ref_version may be referenced by one or more ref_aliasable_data.
- technical_reference (V: SET[0:?] technical_reference(version))
- These are the instances which utilize the semantics of this instance. Each ref_version may be referenced by one or more technical_reference.
Local rules:
- Uniqueness Constraint
- identifier
Supertype path(s):
Entity projects as table R_VERSION.
Referenced in Diagrams:
Generated on Tue Jul 10 15:52:45 2001
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