POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
SPACE_TIME_OPERATION
SUBTYPE OF
(
association
);
intersecting_object :
OPTIONAL
topological_object
;
primary_object :
topological_object
;
projection_vector :
OPTIONAL
ndt_spherical_coordinates_complex_angle
;
ref_space_time_operation :
ref_space_time_operation
;
resulting_object :
topological_object
;
UNIQUE
si: ref_space_time_operation, resulting_object;
END_ENTITY
; (* space_time_operation *)
Generated on Tue Jul 10 19:39:08 2001
© Copyright 2001 POSC. All rights reserved.