Schemas Integration - Information Systems Reengineering, Integration and Normalization - page 282

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Fig. 7.19 Merge classes by generalization

7.3.4 Frame Model Metadata Implementation

Header class

Class name Parents Primary key Operation Class type

Z A k 0 Static

X A k Z Call Ins_X Active

Y A k Z Call Ins_Y Active

Attribute class

Attribute
name

Class
name

Method
name

Attribute
type

Default
value

Cardinality Description

Z A k integer Superclass primary key

X A 3 date Subclass non-key attribute