OID for Global ID system 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 …

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

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

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?

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

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

Supplemental Slides

Supplemental Slides (1) Problem of current ID system It is O.K even if ID 10101 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

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: 1.2 ID: 11010 OID: 1.1 ID: 10010 OID: 1.2 ID: 10010 OID: 1.1 ID: 10101 OID: 1.2 ID: 10101