POSC Specifications: Epicentre Version 3.0
Logical Data Model
ENTITY
GEOLOGIC_PROVINCE
(* Open *)
SUBTYPE OF
(
pfnu
,
technical_earth_feature
);
INVERSE
geologic_feature :
SET [0:?] OF
geologic_feature_province_assn
FOR
geologic_province;
temporal_object :
SET [0:?] OF
geologic_province_age_clsn
FOR
geologic_province;
UNIQUE
si:
earth_feature
.identifier,
earth_feature
.unique_within;
END_ENTITY
; (* geologic_province *)
Generated on Tue Jul 10 19:37:57 2001
© Copyright 2001 POSC. All rights reserved.