DOCUMENT #:
GSC13-PLEN-08
FOR:
Presentation
SOURCE:
TTA
AGENDA ITEM:
CONTACT(S):
Hyoung Jun Kim (khj@etri.re.kr)
Jun Seob Lee (juns@etri.re.kr)
Kishik Park (kipark@etri.re.kr)
OID for Global ID system
TTA
Hyoung Jun Kim, Jun Seob Lee, Kishik Park
30 June 2008
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, 7816-5 …
2
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
3
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
4
Challenges
• OID is used to identify context (ID scheme) in some of SCM
(Supply Chain Management) area, but not generally
– For example, ISO/IEC 15962 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?
5
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
6
Proposed Resolution
• Proposed revision on RESOLUTION GSC-12/03
– Add the following in Resolves section
6) 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
7
Supplemental Slides
8
Supplemental Slides (1)
• Problem of current ID system
– It is O.K even if ID 10101 is used in both context
Context A
ID: 11010
Context B
ID: 11010
ID: 10010
ID: 10101
ID: 10101
– But in global context…
ID: 11010
ID: 10010
Global Context
ID: 10010
ID: 10101
ID: 11010
ID: 10010
ID: 10101
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Supplemental Slides (2)
• Example of global ID system based on OID
– It is O.K even if ID 10101 is used in global context because it has
different OID
Global Context
OID: 1.1
ID: 11010
OID: 1.1
ID: 10010
OID: 1.1
ID: 10101
OID: 1.2
ID: 11010
OID: 1.2
ID: 10010
OID: 1.2
ID: 10101
10