The SEDRIS Data Representation Model
APPENDIX A - Classes
Volume Extent

Abstract Class Name: Volume Extent

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

An instance of one of the concrete subclasses of this DRM class specifies the spatial volume extent of an instance or instances of various volume classes.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

See specific subclasses for examples.

FAQs

Why don't <Volume Extent>'s sub-classes specify location data?
<Location> information is provided by the aggregating object. This allows a single <Volume Extent> to be used in several locations.

Constraints

None.

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.
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Last updated: October 1, 2002 Copyright © 2002 SEDRIS™