Class Name: Cross Reference

Superclass - SEDRIS Abstract Base

Definition

An FGDC-compatible reference to an external data set that is related in some way to the containing SEDRIS object to which the Cross Reference is attached.

Primary Page in DRM Diagram:

• 20

Secondary Pages in DRM Diagram:

• 1
• 2
• 3
• 6
• 8
• 10
• 14
• 19
• 21
• 22

Example

1. A reference to a SEDRIS transmittal covering the adjacent area to the east.
2. A reference to a small-scale map covering the entire area described by a transmittal.
3. A reference to a Statement of Work containing the requirements used to create a transmittal.
4. A reference to a Product Specification describing the content of one of the types of a Data Table.

FAQs

What is the purpose of this class?

This class provides a very general-purpose mechanism that can be used to document almost any type of relationship between an object in a SEDRIS transmittal and an external data set. It uses a Citation component to refer to the external data set, so it has the flavor of a bibliographical reference, and can be used to refer to books, maps, presentations, or any other type of 'publication', as well as to digital data sets. Each Cross Reference also includes a field in which the nature of the relationship can be described. Note that a Cross Reference is similar to a Source, but is more general in nature. Sources should be used to document the data sources that were used in the creation of a SEDRIS transmittal or one of its major subordinate objects. Cross References should be used to refer to the other related materials that may be of interest to the user of a SEDRIS transmittal.

Constraints

Composed of (one-way metadata)

• one Citation (notes)

Component of (one-way)

• optionally, some Attribute Sets
• optionally, some Attribute Set Tables
• optionally, some Attribute Set Table Groups
• optionally, some Environment Roots
• optionally, some Color Tables
• optionally, some Color Table Groups
• optionally, some Data Tables
• optionally, some Features
• optionally, some Feature Models
• optionally, some Geometry Hierarchies
• optionally, some Geometry Models
• optionally, some Images
• optionally, some Models
• optionally, some Sounds
• optionally, some Symbols
• optionally, a Transmittal Root

Field Elements

Notes

Composed of Notes

Citation

 <Citation> for the related external data set (Mandatory)

Fields Notes

relationship

 description of how the cited data set is related (Optional)