POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
A location on the surface of the Earth expressed as a pair of north-south and east-west offsets from legal survey lines.
- vertex (O, K: vertex(pty_legal_survey_location)) (C012)
- Each pty_legal_survey_location may be a property of one vertex.
- activity (O, K, I: activity(process_data))
- Defines the activity which created this instance. Each pty_legal_survey_location may be the result of one activity. Inherited from process_data.
- description (O, I: ndt_comment) (C117)
- A remark or comment about the instance. Inherited from e_and_p_data.
- east_west_distance (O: ndt_accurate_length)
- The distance of the offset in the east/west direction.
- 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.
- north_offset_first (O: ndt_boolean)
- If true, the north/south offset is measured first. If false, the east/west offset is measured first.
- north_south_distance (O: ndt_accurate_length)
- The distance of the offset in the north/south direction.
- preferred_flag (O, I: ndt_boolean)
- The flag is set to True if this instance of property is the preferred value in this data store of this type of property for the object which this property describes. Inherited from property.
- 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) (C127)
- This is the original source of the data (e.g., the surveying company). 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. This may be the same as or different from the provider of the instance (e.g., POSC). Inherited from pty_location.
- 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 pty_legal_survey_location 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 pty_legal_survey_location may be included in one or more document_information_content. Inherited from e_and_p_data.
- east_west_line (O: legal_survey_feature(east_west_reference)) (C012)
- This is the legal survey line used to describe the east/west offset for this location. This line is generally north-south in orientation. If this line is not specified, the east or west line of the designated legal survey area should be used. Each pty_legal_survey_location may use as line for east/west offset one legal_survey_feature.
- east_west_orientation (O: ref_offset_line_orientation(east_west_legal_srvy_location))
- The orientation of the east/west offset, either parallel to the north/south line or perpendicular to the east/west line. Each pty_legal_survey_location may east west orientation one ref_offset_line_orientation.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each pty_legal_survey_location may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- legal_survey_area (O: legal_survey_area(pty_legal_survey_location))
- This designates the legal survey area within which the legal survey location is specified. Each pty_legal_survey_location may be within one legal_survey_area.
- location_status (O, I: ref_location_status(pty_location)) (C076, C122)
- This indicates the status of a location. Each pty_legal_survey_location may have a status of one ref_location_status. Inherited from pty_location.
- north_south_line (O: legal_survey_feature(north_south_reference)) (C012)
- This is the legal survey line used to describe the north/south offset for this location. This line is generally east-west in orientation. If this line is not specified, the north or south line of the designated legal survey area should be used. Each pty_legal_survey_location may use as line for north/south offset one legal_survey_feature.
- north_south_orientation (O: ref_offset_line_orientation(north_south_legal_survey_loc))
- The orientation of the north/south offset, either parallel to the east/west line or perpendicular to the north/south line. Each pty_legal_survey_location may north south orientation one ref_offset_line_orientation.
- process_data_item (I, V: SET[0:?] process_data_item(process_data))
- Defines where this data was used by an activity. Each pty_legal_survey_location may be the value for one or more process_data_item. Inherited from process_data.
- pty_location_accuracy (I, V: SET[0:?] pty_location_accuracy(pty_location))
- Each pty_legal_survey_location may have a property of one or more pty_location_accuracy. Inherited from pty_location.
- ref_east_or_west (O: ref_east_or_west(pty_legal_survey_location)) (C138)
- The direction of the offset, either east or west. Each pty_legal_survey_location may be oriented by one ref_east_or_west.
- ref_north_or_south (O: ref_north_or_south(pty_legal_survey_location)) (C138)
- The direction of the offset, either north or south. Each pty_legal_survey_location may be oriented by one ref_north_or_south.
- represent (O, I: property(representations)) (C125)
- This is the property that is the original for which this representation is an equivalent representation. Each pty_legal_survey_location may be an equivalent representation of one property. Inherited from property.
- representations (I, V: SET[0:?] property(represent)) (C125)
- This designates other properties that are stated to be equivalent representations of this property representation, such as the same geometry using another coordinate system. Each pty_legal_survey_location may have as equivalent representations one or more property. Inherited from property.
Local rules:
Supertype path(s):
Referenced in Diagrams:
Generated on Tue Jul 10 15:48:38 2001
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