This Technical Report covers the identification, specification, development and reuse of enumerated, bounded data value domains for data elements. A data value domain in this context refers to the possible valid values of a data element concept and its associated data elements. An enumerated domain is one for which all values can be explicitly expressed in a structured or unstructured set. A bounded domain implies knowledge of the upper and lower limits of the value set.

Major issues addressed include:

• Specifying attributes of data value domains and, where applicable, each value within the domain; including assigning a unique identifier to each value in the value domain.
• Describing attributes for “conceptual values” of a data element concept domain and “represented values” for a data element derived from it.
• Defining reuse of value domains which can be defined and specified in a standardized way and can be applied as components of many data elements.

This Technical Report complements and extends the attributes of data elements specified in ISO/IEC 11179, Information technology - Specification and standardization of data elements, especially Part 3: Basic attributes of data elements.

This Technical Report is meant to assist users of ISO/IEC 11179. This series of standards is currently undergoing significant revision. When this revision work is completed, the contents of this Technical Report will be either amended or integrated into the 11179 series of standards.