Procedures to Develop and Register Data Elements in Support of Data Standardization. September 2000. Based on: ISO/IEC Draft Technical Report 20943, Information Technology –Procedures for Achieving Metadata Registry (MDR) Content Consistency – Data Elements. Metadata Registry.
Procedures to Develop and Register Data Elements in Support ofData Standardization
ISO/IEC Draft Technical Report 20943,
Information Technology –Procedures for Achieving Metadata Registry (MDR) Content Consistency – Data Elements
EPA’s metadata registry is the Environmental Data Registry (EDR):
The EDR is based onan international standardfor metadata registries.
Information Technology -Data Management and Interchange - Metadata Registries (MDR)
Registration of a data element for the code used by the United States Postal Service (USPS) to represent a state or state equivalent.
What kind of data will be stored in this data element?
Are the data values determined by an arithmetic or statistical procedure?
Is there a definition or description of data values?
What will the data values look like–names,descriptions, numerals to be calculated, character strings, or identifiers?
The USPS standard format for preparing a domestic mail piece requires that the last line of the address contain city name, state code, and ZIP code.
The data element to be registered must represent the list of data values for state code that are acceptable to the USPS for mail delivery.
Is this data element described in an existing standard?
Does the data element exist in this registry or a federation of registries, that has the potential for being used?
National Standards :
Existing Data Elements in the EDR:
All of the Above Include:
The preferred data source for a standard data element for state code for mail delivery within the U.S. for states and state equivalents is the USPS standard, available at:
A definition must capture the essential semantic content of a data element.
Definitions are recorded in context (where did the definition originate or how is it applied?).
Permissible values are the domains of acceptable values for the data element:
Enumerated by a specific list of values?
Defined by a description, procedure, or range?
The code that represents a United States state or state equivalent in a mailing address.
Context: USPS Standard
A name is a term or phrase that describes the data element–something to call it.
Names are recorded in context (where did the name originate or how is it applied?).
Identifiers are unique. They identify the Registration Authority, the organization, the data element, and the version of the data element if information about the data element changes.
Data elements might be classified according to any of the following types of groups where the data element might be listed:
All data have been entered:Recorded
Data are certified to be accurate:Certified
After becoming Agency standard:Standard