The SEDRIS Data Representation Model
APPENDIX A - Classes
Symbol

Class Name: Symbol

Superclass - <Icon>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class is a pictograph with a location, and is used to identify objects on 2D maps or displays.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

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

Example

  1. Standard symbology for a golf course and an appropriate place to draw that symbol on a map are represented by a <Symbol>.

  2. On an operational chart, the tactical overlays are comprised of the symbols representing the unit and control points.

FAQs

No FAQs supplied.

Constraints

None.

Composed of (two-way)

Composed of (two-way metadata)

Component of (two-way)(inherited)

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_String name; (notes)
SE_URN symbol_urn; (notes)

Notes

Fields Notes


name

 This is a meaningful short name.  A full description would be in a
 <Description> component.

symbol_urn

 This is a SEDRIS symbol URN, in the form
 urn:x-sedris:<DNAS>:symbol=<SN>:<S_FMT>
 where:
   <DNAS> is domain name authority name string,
   <SN> is a scoped symbol resource name string, and
   <S_FMT> is a SEDRIS registered symbol tag.

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Last updated: May 15, 2003 Copyright © 2003 SEDRIS™