The SEDRIS Data Representation Model
APPENDIX A - Classes
Expression

Abstract Class Name: Expression

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

An instance of this DRM class represents values that are used by <Control Link> instances and the DRM objects controlled by them.

<Expression> instances represent places within a transmittal where consuming applications shall perform an evaluation in order to get the exact value of the field of a DRM object.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

See individual subclasses for examples.

Constraints

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.
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Last updated: July 26, 2006 Copyright © 2006 SEDRIS