The SEDRIS Data Representation Model
APPENDIX A - Classes
Browse Media

Class Name: Browse Media

Superclass - <SEDRIS Abstract Base>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class specifies a graphic or multimedia resource that provides a preview of the content of its containing SEDRIS object.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

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

Example

  1. A map of the area covered by a <Transmittal Root> or <Environment Root> instance.

  2. A rotating image of a <Model> of an M1A2 tank.

  3. A thumbnail version of an <Image> in the <Image Library>.

  4. A graphic visualization of a function defined by a <Data Table>.

  5. A graphic depiction of the contents of a <Colour Table>.

  6. As a component of <Transmittal Root>, a movie clip of a fly-through of the transmittal.

FAQs

What is the purpose of this class?

This class provides [ISO 19115]-compliant metadata in the form of a graphical or multi-media representation that previews the content of its containing SEDRIS object. Its purpose is to allow a potential user of the attributed object to easily assess the utility of the attributed object.

How is the graphic or multi-media resource encoded? What format(s) can be used?

The resource is identified by a SEDRIS media URN which can be resolved to a URL for the resource. The URN contains a "media format tag" field. These tags are registered by the SEDRIS Organization to denote specific media formats. The resource may be encoded in any one of these registered formats.

Constraints

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_String name; (notes)
SE_Media_Format media_format; (notes)
SE_URN media_urn; (notes)
SE_String description; (notes)

Notes

Fields Notes


name

 The name field specifies the title of the resource.

media_format

 The media_format field specifies the media format of the resource.

media_urn

 The media_urn field specifies a SEDRIS media URN, in the form
 urn:x-sedris:<DNAS>:media=<MN>
 where:
   <DNAS> is domain name authority name string, and
   <MN> is a scoped browse media resource name string.

description

 The description field, if not empty, provides a description of
 the resource.
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Last updated: July 16, 2004 Copyright © 2004 SEDRIS™