POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
An association showing that an earth feature class has been classified as a member of another earth feature class. An earth feature class may be classified in many ways, both simultaneously and sequentially. Members of a class are also members of the classes of the class.
- be_classified_as (M, K: earth_feature_class(classify))
- Specifies the general class in which a specific class is assigned. Each earth_feature_class_clsn must be classified as one earth_feature_class.
- have_as_a_member (M, K: earth_feature_class(be_a_member_of))
- Specifies the class which is a member of a general class. Each earth_feature_class_clsn must have as a member one earth_feature_class.
- 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.
- 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.
- source_content (O, I: ndt_identifier) (C126)
- 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 association_reference.
- source_reference (O, I: ndt_comment) (C042, C126)
- 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 association_reference.
- status (O, I: ndt_instance_status) (C042)
- 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 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 earth_feature_class_clsn 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 earth_feature_class_clsn 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 earth_feature_class_clsn may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- version (O, I: ref_version(association_reference)) (C042, C126)
- This describes the version of this instance as defined by the provider. Each earth_feature_class_clsn may version one ref_version. Inherited from association_reference.
Local rules:
- Uniqueness Constraint
- be_classified_as, have_as_a_member
Supertype path(s):
Referenced in Diagrams:
Generated on Tue Jul 10 15:41:26 2001
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