Feature Model

The SEDRIS Data Representation Model APPENDIX A - Classes Feature Model

Class Name: Feature Model

Superclass - <SEDRIS Abstract Base>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class specifies a reusable representation of the feature aspects of an environmental object represented by its <Model> aggregate.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

The <Feature Model> instance represents a segment of railroad track, with <Property Value> instances describing its mobility and material properties.

FAQs

Where can users find further information on feature topology in the DRM?: See P4V4 of the SEDRIS Documentation Set for further information.

Composed of (two-way metadata)

zero or one <Access> instance
zero or more <Cross Reference> instances
zero or one <Data Quality> instance
zero or one <Description> instance

Component of (two-way)

one <Model> instance

Inherited Field Elements

This class has no inherited field elements.

Notes

Composed of Notes

Feature_Hierarchy

The <Feature Hierarchy> component is actually required unless an empty <Model> instance is being created (see <<Non Empty Model Instance>>).

Prev: Feature Hierarchy. Next: Feature Model Instance. Up:Index.

Last updated: August 23, 2005