The SEDRIS Data Representation Model
APPENDIX A - Classes
Property

Abstract Class Name: Property

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

A <Property> specifies a property of the attributed SEDRIS object in terms of

  1. its meaning (specified using an EDCS Attribute Code, SE_Index_Code, or SE_Variable_Code),
  2. its units (e.g. metres),
  3. and its data storage type (e.g. EDCS_Short_Integer).
See individual subclasses for details on the uses of <Property> objects.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

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

Example

See specific subclasses for examples.

Constraints

Composed of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_Element_Type meaning; (notes)
EDCS_Unit_Code value_unit; (notes)
EDCS_Scale_Code value_scale; (notes)

Notes

Fields Notes


meaning

 Specifies the meaning of the <Property>.

value_unit

 Specifies the unit of measurement of the <Property>.

value_scale

 Specifies the scale applicable to value_unit.

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Last updated: October 1, 2002 Copyright © 2002 SEDRIS™