The SEDRIS Data Representation Model
APPENDIX A - Classes
Property Table Reference Set

Class Name: Property Table Reference Set

Superclass - <Property Table Reference Entry>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class is used to group multiple <Property Table Reference> instances for the purpose of indexing them together using a single index attribute. <Property Table Reference Set> is functionally equivalent to aggregating multiple <Property Table Reference> instances.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

This class appears on only one page of the DRM class diagram.

Example

  1. A <Base Vertex> may aggregate multiple <Property Table Reference> instances. This could alternately be represented by aggregating the <Property Table Reference> instances within a <Property Table Reference Set> instance, placing the <Property Table Reference Set> in a <Property Table Reference Table>, and using the property_table_reference_index field of a <Vertex With Component Indices> to reference it.

FAQs

No FAQs supplied.

Constraints

None.

Composed of (two-way)

Component of (two-way)(inherited)

Inherited Field Elements

This class has no inherited field elements.
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Last updated: May 15, 2003 Copyright © 2003 SEDRIS™