The EDCS supports the encoding and communication of qualitative and
quantitative information associated with physical environments, both real
and virtual. This is accomplished by specifying a collection of nine EDCS
Dictionaries of environmental concepts. An EDCS Dictionary is a list of
EDCS Dictionary Entries each of which specifies a single concept. Each
EDCS Dictionary contains entries of a similar nature, however each entry
is unique. Each EDCS Dictionary Entry consists of the following fields:
- definition,
- label,
- code,
- references and reference type, and
- other EDCS Dictionary-dependent information such as value types, unit
symbols, or unit equivalence classes.
The nine EDCS Dictionaries are:
- EDCS Classification (EC) Dictionary,
- EDCS Attribute (EA) Dictionary,
- EDCS Attribute Value Metadata (EM) Dictionary,
- EDCS Attribute Enumerant (EE) Dictionary,
- EDCS Unit (EU) Dictionary,
- EDCS Unit Scale (ES) Dictionary,
- EDCS Unit Equivalence Class (EQ) Dictionary,
- EDCS Organizational Schema (EO) Dictionary, and
- EDCS Group (EG) Dictionary.
Additional entries may be added to most EDCS Dictionaries through the
process of registration.
.
The EDCS Application Program Interface (API) supports conversion between
real values given in different units of measure.
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