Abstract Class Name: Base Classification Data

Superclass - SEDRIS Abstract Base

Subclasses

• Classification Data
• Feature Classification Data
• Geometry Classification Data

Definition

An object containing an alphanumeric code used to classify its parent object according to the nature of the real-world entity that it represents. This code is defined by the Environmental Data Coding Standard (EDCS).

Primary Page in DRM Diagram:

• 9

Example

1. An EDCS Classification Code (ECC) such as EDCS_CC_DRIVE_IN_THEATER or EDCS_CC_ROAD.
2. A Classification Data with tag = EDCS_CC_BUILDING, elaborated with a Property Value component with attribute code EDCS_AC_BUILDING_FUNCTION_CATEGORY and value SE_PROP_VAL_BFC__CASTLE:
   

FAQs

What does Base Classification Data classify?

Let X be a SEDRIS object that contains a subclass object of Base Classification Data as a component. The subclass instance specifies what X represents in the world.

Why do Base Classification Data have an optional Property Value component?

Some ECC codes are too broad and need elaboration (see example 2).

Why not just attach an elaborating Property Value component to the classified object?

Because that would obfuscate the purpose of the provided value.

Are there restrictions on which Property Value instances can be used for components?

Only Property Values with EACs that are marked as "Classification related" may be used. In addition, only those that refine the descriptive quality of the ECC in its context should be used.

Where can I find a list of EDCS' classification codes?

See the EDCS Classification Codes page and Part 4, Volume 10 of the Documentation Set: Classification, Attribute, and State Coding Standard.

How can I find out what version of the EDCS I am using?

The Level 0 API has a function that provides this information:
SE_GetTransmittalVersionInformation()

Constraints

• Elaboration of Classification Data

Composed of (one-way)

• optionally, a Property Value

Field Elements

Notes

Fields Notes

tag

 Contains an EDCS Classification Code (ECC).