Class Name: Feature Model

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

An instance of this DRM class is a collection of feature attributes and the necessary hierarchy and attributes required to build a <Feature> representation of an environmental entity, defined in the single spatial reference frame specified by its <Model> aggregate.

Primary Page in DRM Diagram:

• 2

Secondary Pages in DRM Diagram:

• 7
• 8
• 16

Example

1. A segment of railroad track, with <Property Values> describing its mobility and material properties.

FAQs

Where can users find further information on feature topology in SEDRIS?

See Part 4, Volume 4 Topology Technical Guide of the SEDRIS Documentation Set for further information.

Constraints

Associated by (one-way)

• zero or more <Feature Model Instance> instances

Composed of (two-way)

• zero or one <Feature Hierarchy> instance (notes)

Composed of (two-way metadata)

• zero or one <Access> instance
• zero or more <Browse Media> instances
• zero or more <Cross Reference> instances
• zero or one <Data Quality> instance
• zero or one <Keywords> instance
• zero or one <Point Of Contact> instance

Component of (two-way)

• one <Model> instance

Inherited Field Elements

Notes

Composed of Notes

Feature_Hierarchy

 This is actually required, except when the <<Non Empty Model>>
 constraint is applicable.