Environmental Data Registry

1
Environmental Data Registry Content
A Comparison of the EDR with the ANS X3.285 Model
February 18, 1999
Kathleen Gundry Systems Development Center
SDC-0055-057-JE-8021
2
Goals of the EDR

• To provide a source of well-defined data elements
  and value domains readily available for reuse in
  EPA application systems
• To provide a metadata repository, an information
  source about agency application system data

3
Chronology of EDR

• EDR developed in compliance with ISO 11179
  standard for metadata registries
• Populated EDR with well-defined data elements,
  including established standards (countries,
  states, SIC/NAICS)
• Populated EDR with EPA application system
  metadata (Envirofacts)

4
X3.285 Components Not Implemented in the EDR

• Information about multiple registration
  authorities
• Name context definitions
• Component record (description of database
  changes)
• Value Domain character set

5
X3.285 Components Not Implemented in the EDR
(continued)

• Value domain associations
• Data element concept associations
• Data element rule information
• Classification Scheme (currently under
  development)

6
EDR Components Beyond X3.285

• Value Meaning Name attribute
• Maximum and minimum range for values
• Source documents and Source systems, including
  URLs
• Message sets metadata
• Groups and subgroups

7
Coming Attractions

• Link between the EDR and the Terminology
  Reference System to provide classification
  schemes
• Data element to data element link to enable
  creation of complex data elements and
  relationships between standard and
  application data elements

8
Future of EDR Data

• Continue to load standard data elements as
  adopted by EPA
• Continue to load application data elements
• Review and improve application data elements

9
Future of EDR Data(continued)

• Link application data elements to standards
• Broaden available standard data elements and
  domains

10
Future of EDR Model

• Multiple registration authorities undergoing
  analysis
• Classification scheme addition in design
• Data element to data element link under
  development