POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
PTY_POPULATION
SUBTYPE OF
(
pty_transient_property
);
data_value :
ndt_int4
;
leaseable_earth_feature :
OPTIONAL
leaseable_earth_feature
;
technical_earth_feature :
OPTIONAL
technical_earth_feature
;
UNIQUE
si:
pty_transient_property
.end_time,
pty_transient_property
.ref_transient_period,
pty_transient_property
.start_time,
process_data
.activity, technical_earth_feature, leaseable_earth_feature;
END_ENTITY
; (* pty_population *)
Generated on Tue Jul 10 19:38:35 2001
© Copyright 2001 POSC. All rights reserved.