POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
An orientable boundary surface of a region. A single region may have more than one shell, as in the case of a solid object with a void contained within it. A region may have no shell only where all space exists as a single region, as in the initial state where no modeling has been done, or after all components of a model have been deleted, or if only faces, rings, edges, vertices have been created. A shell consists of one face or of a connected set of faces which form a closed volume.
- identifier (O, K, I: ndt_identifier) (C004)
- The identifier of the spatial object. Inherited from spatial_object.
- located_object (O, K, I: locatable_object(located_by)) (C004)
- The locatable object that is represented by this spatial nature. Each shell may locate one locatable_object. Inherited from spatial_object.
- identifying_whole (O, K, I: composite_spatial_object(identify_part)) (C004)
- The composite objects within whose context this object is unique. Each shell may be identified by one composite_spatial_object. Inherited from spatial_object.
- creating_activity (O, K, I: activity(created_spatial_object)) (C004)
- The activity which created the spatial opinion. Each shell may be created by one activity. Inherited from spatial_object.
- located_activity (O, K, I: activity(located_by_spatial_object)) (C004)
- The activity which is (at least partially) located by this spatial opinion. This allows the spatial opinions of locatable objects to be versioned within the context of the activity. Each shell may located one activity. Inherited from spatial_object.
- 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.
- preferred_flag (O, I: ndt_boolean) (C087)
- When true, this designates this instance as being the preferred spatial representation for the related locatable_object. Inherited from spatial_object.
- 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.
- component_whole (I, V: SET[0:?] composite_spatial_object_comp(spatial_object)) (C004)
- The composites which are constructed using this spatial object as a part. Each shell may be part of one or more composite_spatial_object_comp. Inherited from spatial_object.
- contract_object_designation (I, V: SET[0:?] contract_object_designation(business_object)) (C112)
- This defines the contract designations that are made for this business object. For example, this may be the contract designations that define the specific interest ownership fractions of the business object as it is bought and sold. Each shell may be subject to one or more contract_object_designation. Inherited from business_object.
- coordinate_system_context (I, V: SET[0:?] general_coordinate_system(local_context)) (C148)
- These are the coordinate systems which have been defined in the context of this object. For example, a measured depth system defined for a wellbore. Each shell may be the context for one or more general_coordinate_system. Inherited from topological_object.
- coordinate_system_reference (I, V: SET[0:?] general_coordinate_system(spatial_reference)) (C148)
- These are the coordinate systems which have used this object as a reference origin or (local, engineering, etc) datum for the coordinate system. For example, a measurd depth system which uses the vertex representation of a kelly bushing used as the origin. Each shell may have as a spatial reference one or more general_coordinate_system. Inherited from spatial_object.
- 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 shell may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- derived_interest (I, V: SET[0:?] derived_interest_makeup(interest_for)) (C071, C122)
- These are the ownership fractions for business associates of this object. Each shell may be referenced by one or more derived_interest_makeup. Inherited from object_of_interest.
- 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 shell may be included in one or more document_information_content. Inherited from e_and_p_data.
- earth_model (I, V: SET[0:?] earth_model_composition(spatial_object)) (C053)
- Indicates various earth models which include this spatial representation. Each shell may be part of one or more earth_model_composition. Inherited from spatial_object.
- face (V: SET[0:?] shell_composition(shell)) (C006)
- Defines the faces which compose this shell. Each shell may be composed of one or more shell_composition.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each shell may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- guideline_compliance (I, V: SET[0:?] guideline_compliance(business_object)) (C112)
- These are the designations of compliance with guidelines, limitations, regulations and privileges that are made for this business object. Each compliance statement describes the state of compliance for a specified guideline, limitation, regulation or privilege for a period of time. Each shell may be the subject of one or more guideline_compliance. Inherited from business_object.
- guideline_or_privilege (I, V: SET[0:?] object_subject_to_guideline(business_object)) (C053)
- These are the guidelines, limitations, regulations or privileges that are specifically defined for this business object. Other general guidelines, etc., that apply to this business object are defined via the typical and class relationships (if any) defined for this business object. Each shell may be the subject of one or more object_subject_to_guideline. Inherited from business_object.
- intersection_role (I, V: SET[0:?] space_time_operation(intersecting_object))
- Indicates a space/time operation for which the object is involved as an intersecting agent. For projection, this is the screen on which an object is being projected. For proximity, this is the magnet object. Each shell may be the intersecting object for one or more space_time_operation. Inherited from topological_object.
- involving_activity (I, V: SET[0:?] object_activity_involvement(involved_object)) (C056)
- This are the activity involvements which affect the object. Each shell may have involvements with one or more object_activity_involvement. Inherited from object_of_interest.
- object_remark (I, V: SET[0:?] object_remark(business_object)) (C069, C122)
- This is a sequenced set of datable remarks for this business object. Each shell may be described by one or more object_remark. Inherited from business_object.
- position_uncertainty_clsn (I, V: SET[0:?] position_uncertainty_clsn(spatial_object)) (C112)
- The set of classifications of this position with respect to its degree of uncertainty. Each shell may be classified by one or more position_uncertainty_clsn. Inherited from spatial_object.
- primary_geometrical_relation (I, V: SET[0:?] geometrical_relationship(primary_spatial_object)) (C112)
- Indicates a geometrical relationship in which this spatial object has the role of primary agent. Each shell may be primarily involved in one or more geometrical_relationship. Inherited from spatial_object.
- primary_role (I, V: SET[0:?] space_time_operation(primary_object))
- Indicates a space/time operation for which the object is involved as a primary agent. For degeneration, this object is being degenerated. For projection, this object is being projected onto another object. For proximity, this is the container object. Each shell may be the primary object for one or more space_time_operation. Inherited from topological_object.
- primary_topological_relation (I, V: SET[0:?] topological_relationship(primary_topological_object)) (C112, C143)
- Indicates a topological relationship in which the topologic object has the role of primary agent. For a spatial predicate type of "within" this is the containing role (e.g., if a city is inside a county then the county would be the primary agent). For all other spatial predicate types the roles are symmetrical and both relationships must be searched for a particular object. For example, if a wellbore and a formation overlap then either could be chosen as the primary agent with the other chosen as the secondary agent. Each shell may be primarily involved in one or more topological_relationship. Inherited from topological_object.
- pty_descriptive_text (I, V: SET[0:?] pty_descriptive_text(spatial_object)) (C008)
- Versionable description of a spatial object. This is modeled as a property, and hence is versionable, to allow for different opinions of a spatial object to be expressed. Each shell may have a property of one or more pty_descriptive_text. Inherited from spatial_object.
- pty_geometry_3d_shell (V: SET[0:?] pty_geometry_3d_shell(shell))
- Each shell may have a property of one or more pty_geometry_3d_shell.
- satisfy_obligation (I, V: SET[0:?] contract_oblig_object_fulfil(business_object)) (C053)
- These are the contractual obligations that this business object is designated as fulfilling, either completely or partially. Each shell may satisfy one or more contract_oblig_object_fulfil. Inherited from business_object.
- secondary_geometrical_relation (I, V: SET[0:?] geometrical_relationship(secondary_spatial_object)) (C112)
- Indicates a geometrical relationship in which this spatial object has the role of secondary agent. Each shell may be involved in one or more geometrical_relationship. Inherited from spatial_object.
- secondary_topological_relation (I, V: SET[0:?] topological_relationship(secondary_topological_object)) (C112, C143)
- Indicates a topological relationship in which the object is in the role of secondary agent. For a spatial predicate type of "within" this is the contained role (e.g., if a well is within a field then the well would be the secondary agent). For all other spatial predicate types the roles are symmetrical and both relationships must be searched for a particular object. For example, if a wellbore and a formation overlap then either could be chosen as the secondary agent with the other chosen as the primary agent. Each shell may be involved in one or more topological_relationship. Inherited from topological_object.
- shell_region_binding (V: SET[0:?] shell_region_binding(shell))
- Indicates various usages of this shell to delimit regions. Each shell may provide the bounds for one or more shell_region_binding.
- source_space_time_operation (I, V: SET[0:1] space_time_operation(resulting_object)) (C151)
- Indicates the space/time operation from which a topological object was the result. For addition, this is the union of two objects. For degeneration, this is the degenerate object. Each shell may be the result of one space_time_operation. Inherited from topological_object.
- subject_of_contract (I, V: SET[0:?] subject_of_contract(business_object)) (C053)
- These are the contracts that specify information about the business object, and the business object is subject to the terms of these contracts. Each shell may be a subject of one or more subject_of_contract. Inherited from business_object.
Local rules:
Supertype path(s):
Entity consolidated into table SPATIAL_OBJECT.
Referenced in Diagrams:
Generated on Tue Jul 10 15:54:20 2001
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