Data Coding Specification

• Unifies characterizations of environmental “things”

  • Whether individual primitives or structured collections
  • Regardless of how represented -- Feature or Geometry or Data Table or Model or ...

• Separates enumerations from the Data Representation Model

  • Evolves at different rates
  • Allows better leverage of (and coordination with) external standards
  • Increased flexibility/extensibility

• Answers three types of questions:

  1. What is it?
  
  ? EDCS Classification Code (ECC)
  
  2. What are its additional clarifying properties or characteristics?
  ? EDCS Attribute Code (EAC)
  
  3. How is the attribute measured?
  ? EDCS Unit Code (EUC)
  

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