1. OID for Global ID system
DOCUMENT #:
GSC13-PLEN-08
FOR:
Presentation
SOURCE:
TTA
AGENDA ITEM:
CONTACT(S):
Hyoung Jun Kim
Jun Seob Lee
Kishik Park
OID for Global ID system
TTA
Hyoung Jun Kim, Jun Seob Lee, Kishik Park
30 June 2008

2. Highlight of Current Activities (1)
What is an ID scheme?
ID (identifier) is used to uniquely identify an entity
Definition: An unambiguous name, in a given naming context (see ITU-T Terms and Definitions Database)
ID scheme is a method of assigning numbers to entities
Current activities in SDOs
Various ID schemes according to the specific purposes and applications
Phone number, International Standard Book Number (ISBN), Universal Product Code (in barcode), IdM in ITU-T, EPC global Unique Item Identifier …
ITU-T is developing a couple of new ID schemes for applications and services using tag-based identification
xCode and uCode for multimedia services using tag-based identification
ISO/IEC has many ID schemes to identify physical objects in RFID context
ISO/IEC 15459, 15963, …

3. Highlight of Current Activities (2)
Why do we need a global ID system?
Too many ID schemes in the world, but
Most of them are not interoperable in global context
For example, EPC global Unique Item Identifiers are unique in EPC network context ,not in global context
Can an almighty ID scheme cover every tag-based identification applications?
This almighty ID scheme should be long enough
Does an application which has only 10 entities to identify need 128 or more bits long identifier?
Designing a new ID scheme for its own purpose is better
We need a global ID system which enables us to use any ID scheme
OID (Object Identifier, ITU-T X.660 series | ISO/IEC 9834-x) is key for this global ID system

4. Strategic Direction How to identify an entity in global context
An ID with OID can uniquely identify entities in global context
ID is unique only in a specific context
OID can be used to identify this specific context
ID with OID to uniquely identify an entity already used in this purpose in some area
OID is an International Standards (ITU-T X.660 series | ISO/IEC 9834-x)
Propose to use OID in order to enable globally interoperable ID system
OID should be used to specify a specific context
International Standards and Recommendations related to ID should describe how to specify a specific context using an OID
Which OID should be used
How to write OID and ID into the data carriers such as RFID tags

5. Challenges
OID is used to identify context (ID scheme) in some of SCM (Supply Chain Management) area, but not generally
For example, ISO/IEC defines how to encode OID and ID into RFID tags
EPC global Unique Item Identifiers do not have OIDs
Significance of ID is highlighted by RFID and SCM, but RFID is just small part of tag-based identification applications
De facto SDOs are focusing on their on application area
They are not considering the global context (identify an entity in global context)
To re-use current existing ID schemes, which has no OID, in global context, we need to assign OIDs to them
By whom and How?

6. Next Steps/Actions
ITU-T and ISO/IEC should collaborate to expand usage of OID for a global ID system
Identify problems of current existing ID schemes which are being used in global context
Use OID to enable a globally interoperable ID system
Recommend other SDOs to design their ID schemes to be identified in global context using OID

7. Proposed Resolution Proposed revision on RESOLUTION GSC-12/03
Add the following in Resolves section
to encourage the ITU-T, PSOs, other relevant standards bodies and fora /consotia to collaborate in order to promote the use of OID to enable a globally interperable ID system

8. Supplemental Slides

9. Supplemental Slides (1)
Problem of current ID system
It is O.K even if ID is used in both context
But in global context…
Context A
Context B
ID: 11010
ID: 11010
ID: 10010
ID: 10010
ID: 10101
ID: 10101
Global Context
ID: 11010
ID: 11010
ID: 10010
ID: 10010
ID: 10101
ID: 10101

10. Supplemental Slides (2)
Example of global ID system based on OID
It is O.K even if ID is used in global context because it has different OID
Global Context
OID: 1.1
ID: 11010
OID: 1.2
ID: 11010
OID: 1.1
ID: 10010
OID: 1.2
ID: 10010
OID: 1.1
ID: 10101
OID: 1.2
ID: 10101