PCD SDO IEEE EUI-64 ISO OID Proposal

Proposal for ISO OID Support of IEEE EUI-64s Indentifying Medical Devices

Background

Per IEEE 11073 standards and the [DEC] profile, medical devices are uniquely identified using an EUI-64. HL7 CDA documents rely on ISO Object Identifiers ("OIDs") to encode much of the contained information. After some research, it was determined that there is no existing OID for either naming an EUI-64 data item or for encoding an actual EUI-64.

Additionally...

• In evaluating the correct arc to use for an EUI-64, a comparison was made of the related documentation in ISO/IEEE 11073-00000 Framework & Overview and in ISO/IEEE 11073-10101 Nomenclature. There is a discrepancy between the two arcs. As a result either this problem needs to be resolved or a simplified approach may be used.

• A general method should be defined for 11073 terminology mapping to ISO OIDs. The mapping need only support the 32-bit context free term codes.

Coordination with IEEE RAC 2008.07 Denver Meeting

The IEEE Registration Authority Committee ("RAC"), which adminsters the Organizationally Unique Identifier ("OUI") database, is about to publish guidelines for the use of ISO Object Identifiers (OID's) based upon items that fall under the authority of the IEEE (including standards, OUIs, EUI-64's, etc.).

A presentation was made to the RAC during their meeting in Denver 2008.07.17 at the 802 annual plenary meetings. Though the source document upon which this presentation was based was out-of-date (v0.4 of the draft RAC ISO OID Tutorial vs. v0.5 that they were actually working from), there was general consensus with the content of the presetation.

Reviewing the updated IEEE RAC ISO OID Tutorial, the following arc was defined for EUI-64 encoding:

iso(1) iso-identified-organization(3) ieee(111) registration-authority(1) oui(a) oui-123(123) assignee-values(2) eui-64-assignments(2) eui-64-extension-identifier-456(456)

Where "oui-123" is the company identifier with a value of "123", and "eui-64-extension-identifier-456" is the 40-bit extension with a value of "456".

Though the Tutorial has yet to be published, it is anticipated that the technical content is / will be finalized in the very near future (i.e., before the end of the summer).

It was also stressed that the community of ISO/IEEE 11073 users would appreciate an on-line registry of at least the major ISO OID branches that can be accessed publicly. For example, the branch that is used to represent ISO/IEEE 11073 terms using an ISO OID (e.g., in HL7 CDA/CCD documents).

EUI-64 ISO OID 11073 Nomenclature Term

<11073 arc & 32-bit term code for naming an EUI-64 parameter>

EUI-64 Encoding as an ISO OID

<11073 arc & 32-bit term code & format for encoding an EUI-64 value>