POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
GEOPHYSICAL_DATA_SET
ABSTRACT SUPERTYPE OF
(
ONEOF
(
potential_field_data_set
,
seismic_data_set
))
SUBTYPE OF
(
data_trace
);
derived_from :
OPTIONAL
geophysical_data_set
;
geometry_set :
geophysical_geometry_set
;
utilized_processing_grid :
OPTIONAL
geophysical_processing_grid
;
utilized_uid_grid :
OPTIONAL
geophysical_geometry_set
;
INVERSE
applied_data :
SET [0:?] OF
geophysical_data_association
FOR
applied_to;
applied_to :
SET [0:?] OF
geophysical_data_association
FOR
applied_data;
derived_data :
SET [0:?] OF
geophysical_data_set
FOR
derived_from;
geophysical_display :
SET [0:?] OF
geophysical_display
FOR
data_set;
offline_data :
SET [0:?] OF
geophysical_offline_data
FOR
data_set;
processing_indicator :
SET [0:?] OF
geophysical_proc_indicator
FOR
data_set;
pty_geometry_1d_edge :
SET [0:?] OF
pty_geometry_1d_edge
FOR
geophysical_data_set;
pty_geometry_2d_edge :
SET [0:?] OF
pty_geometry_2d_edge
FOR
geophysical_data_set;
pty_geometry_2d_face :
SET [0:?] OF
pty_geometry_2d_face
FOR
geophysical_data_set;
WHERE
dri1: NOT (derived_from IN derived_data);
END_ENTITY
; (* geophysical_data_set *)
Generated on Tue Jul 10 19:37:58 2001
© Copyright 2001 POSC. All rights reserved.