EDCS Dictionary Structure

• Nine dictionaries of concepts are as follows:
  • Classification..……………………………………………
  • Attribute ……………………………………..……………
    • Attribute Value Characteristic …………………..
    • Attribute Enumerant …..………………..………….
    • Unit ………………….…………………………………
      • Unit Scale………………..………………………..
      • Unit Equivalence Class ……………………..…
    • Organizational Schema ...…………………………….…
      • Group ..……………………………………………..….

• Each dictionary entry has at least a definition, label, and code
  • Most also explicitly include reference type and reference
  • Some have additional information
    • Attribute: Value Type, Unit Equivalence Class
    • Unit: Symbol, Quantity, Unit Equivalence Class

Note that the “E” in each dictionary acronym stands for “EDCS”.

EC

EA

EV

EE

EU

ES

EQ

EO

EG

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