Schemas Integration - Information Systems Reengineering, Integration and Normalization - page 281

7.3.3 Frame Model Metadata

Header class

Class name Parents Primary key Operation Class type

Y X A 1 Static

X 0 A 1 Static

Attribute class

Attribute
name

Class name Method

name

Attribute
type

Default
value

Cardinality Description

Y A 1 Integer Superclass primary

key

Y A 2 Date Subclass non-key

attribute

X A 3 Date Superclass non-key

attribute

Substep 2.3. Merge Classes by Generalization
The integration can be based on the subtype relationship between two subclasses
and one superclass and which can be specified in the Parent attribute of the Header
class and the method class in the frame model metadata (Fig. 7.19 ).