POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
Identifies the collection of seismic data that exists at a particular state of the processing. Processing that changes the data will normally create a new data set. The fundamental characteristic of data in this collection is that it is identified by some combination of source events, receivers and/or bin nodes and is not considered to be part of an earth model. Data which has direct references to earth positions must be stored elsewhere. The data set may represent the traditional amplitude as a function of time or it may represent data such as residual statics, velocity analysis (i.e., semblance as a function of time and velocity), filter scan (i.e., each amplitude trace representing a dominant frequency), velocity scan (i.e., each amplitude trace representing a constant velocity), velocity function (i.e., velocity as a function of time), F-K data (i.e., amplitude as a function of frequency and wave number), etc.
- identifier (O, K, I: ndt_identifier) (C049)
- The identifying label assigned to a data trace. Inherited from data_trace.
- naming_system (O, K, I: naming_system(data_trace)) (C115)
- The naming system in which the identifier is specified and determined to be unique. Each seismic_data_set may have name specified by one naming_system. Inherited from data_trace.
- geometry_set (M, K, I: geophysical_geometry_set(data_set))
- The acquisition geometry that this data represents. Each seismic_data_set must represent one geophysical_geometry_set. Inherited from geophysical_data_set.
- data_value (O, I: ndt_trace_value) (C115)
- A multidimensional array of data containing one or more characteristics which can be indexed in various ways. Inherited from data_trace.
- 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.
- activity (O, I: activity(process_data))
- Defines the activity which created this instance. Each seismic_data_set may be the result of one activity. Inherited from process_data.
- applied_data (I, V: SET[0:?] geophysical_data_association(applied_to))
- Defines the sets of data which have been applied directly to this data set. Each seismic_data_set may have had applied one or more geophysical_data_association. Inherited from geophysical_data_set.
- applied_to (I, V: SET[0:?] geophysical_data_association(applied_data))
- This defines the data sets that this data has been applied to. This should not also point to the children of the data set unless this data was also directly applied to the child. Each seismic_data_set may have been applied to one or more geophysical_data_association. Inherited from geophysical_data_set.
- data_alias (I, V: SET[0:?] data_trace_alias(aliased_object)) (C115)
- Indicates alternative identifiers of this data. Each seismic_data_set may be known by one or more data_trace_alias. Inherited from data_trace.
- 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 seismic_data_set may be a member of one or more data_collection_content. Inherited from e_and_p_data.
- derived_data (I, V: SET[0:?] geophysical_data_set(derived_from))
- This defines the set of data sets that are created as a direct result of modifying or analyzing this data set. This does not include children-of-children but does include secondary data such as residual statics or velocities which were derived from the parent. Each seismic_data_set may be source of one or more geophysical_data_set. Inherited from geophysical_data_set.
- derived_from (O, I: geophysical_data_set(derived_data))
- This defines the data set from which this data set was derived. This excludes secondary data (e.g., velocities, statics) which influenced the algorithm that modified the data. Each seismic_data_set may be derived from one geophysical_data_set. Inherited from geophysical_data_set.
- 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 seismic_data_set may be included in one or more document_information_content. Inherited from e_and_p_data.
- geometry_segment (O: geophysical_geometry_segment(seismic_data_set))
- The geometry segment represented by the data in this set. Each seismic_data_set may represent one geophysical_geometry_segment.
- geophysical_display (I, V: SET[0:?] geophysical_display(data_set)) (C139)
- The set of displays which primarily represent this data set. Each seismic_data_set may be represented by one or more geophysical_display. Inherited from geophysical_data_set.
- graphical_element (I, V: SET[0:?] graphical_element(depicted_object))
- Specifies one or more graphical elements which are depicting this data item. Each seismic_data_set may be depicted by one or more graphical_element. Inherited from e_and_p_data.
- grid_geometry_behavior (O, I: grid_geometry_behavior(grid_element_behavior))
- This is the description of grid geometry for which this set of grid element properties are defined. Each seismic_data_set may use the geometry of one grid_geometry_behavior. Inherited from grid_element_behavior.
- offline_data (I, V: SET[0:?] geophysical_offline_data(data_set))
- Defines the offline data which is represented by this data set. Each seismic_data_set may may be characterized by one or more geophysical_offline_data. Inherited from geophysical_data_set.
- processing_indicator (I, V: SET[0:?] geophysical_proc_indicator(data_set))
- This defines the list of "high level" indicators of the processing steps which have occurred in the processing history of this set of data. The ordering attribute allows the same type of processing to occur more than once . In general, this list should match the processing of the "parent" data except that new steps may be added. Each seismic_data_set may have processing steps of one or more geophysical_proc_indicator. Inherited from geophysical_data_set.
- process_data_item (I, V: SET[0:?] process_data_item(process_data))
- Defines where this data was used by an activity. Each seismic_data_set may be the value for one or more process_data_item. Inherited from process_data.
- pty_geometry_1d_edge (I, V: SET[0:?] pty_geometry_1d_edge(geophysical_data_set))
- Defines the spatial location of the nodes on the grid utilized by attribute data value. The grid used must be the same as the grid used by data value. If the geometry is defined using processing index values then the spatial locations may be found on the utilized processing grid. If the geometry is defined using acquisition index values then the spatial locations may be found on the utilized measurement grid. Each seismic_data_set may have a property of one or more pty_geometry_1d_edge. Inherited from geophysical_data_set.
- pty_geometry_2d_edge (I, V: SET[0:?] pty_geometry_2d_edge(geophysical_data_set))
- May have a property of pty geometry 2d edge. Defines the spatial location of the nodes on the grid utilized by attribute data value. The grid used must be the same as the grid used by data value. Each seismic_data_set may have a property of one or more pty_geometry_2d_edge. Inherited from geophysical_data_set.
- pty_geometry_2d_face (I, V: SET[0:?] pty_geometry_2d_face(geophysical_data_set))
- May have a property of pty geometry 2d face. Defines the spatial location of the nodes on the grid utilized by attribute data value. The grid used must be the same as the grid used by data value. If the geometry is defined using processing index values then the spatial locations may be found on the utilized processing grid. If the geometry is defined using acquisition index values then the spatial locations may be found on the utilized measurement grid. Each seismic_data_set may have a property of one or more pty_geometry_2d_face. Inherited from geophysical_data_set.
- pty_geometry_3d_region (V: SET[0:?] pty_geometry_3d_region(seismic_data_set))
- Each seismic_data_set may have a property of one or more pty_geometry_3d_region.
- seismic_header (O: seismic_header(seismic_data_set))
- Defines the header which provides information about the grid. If a header is specified, then the grid used by the data must directly or indirectly use the same grid as is used by the header. Each seismic_data_set may utilize one seismic_header.
- seismic_pick (V: SET[0:?] seismic_pick(seismic_data_set)) (C065)
- Defines the geologic features which have been interpreted to appear on this data and classifies their appearance. Each seismic_data_set may contains one or more seismic_pick.
- utilized_processing_grid (O, I: geophysical_processing_grid(utilizing_data_set))
- Defines the processing grid used for the grid of the data. Each seismic_data_set may utilize grid from one geophysical_processing_grid. Inherited from geophysical_data_set.
- utilized_uid_grid (O, I: geophysical_geometry_set(data_grid_use))
- Defines the geometry set which specified the uid grid used in the data. Each seismic_data_set may utilize grid from one geophysical_geometry_set. Inherited from geophysical_data_set.
Local rules:
- Uniqueness Constraint (C115, C144)
- identifier, naming_system, geometry_set
- Different Related Instance (C050)
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The entity instance defined by the derived_from SEISMIC DATA SET must not be included in the set defined by the derived_data SEISMIC DATA SET.
- Different Related Instance
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An entity instance must not be derived from itself.
- [I: geophysical_data_set] Different Related Instance
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The entity instance defined by the derived_from data set must not be included in the set defined by the derived_data data set. An entity instance must not be derived from itself.
Supertype path(s):
Referenced in Diagrams:
Generated on Tue Jul 10 15:54:01 2001
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