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3 Unleashing the potential of the Internet of Things
Figure 1 – Reference service architecture model
7 Service requirements of tag-based identification applications and services
The following are high-level service requirements for tag-based identification applications and
services. These requirements identify the required extensions to the set of NGN release 1
capabilities. Requirements in Appendix I do not impact NGN capabilities and they are provided for
informative purposes in order to develop tag-based identification applications and services over the
NGN environment.
7.1 Multi-identifier interpretation requirements
An identifier constituted by sub-identifier elements is required to be interpreted into sub-identifiers
by its structure information. An ID terminal is required to contain the structure information of the
supported identifiers.
Tag-based identification applications and services have the following requirement to support
multi-identifier interpretation:
• identifier structure information may be provided to an ID terminal.
7.2 Identifier resolution
Tag-based identification applications and services have the following identifier resolution
requirements:
1) it is recommended to provide forward identifier resolution from an identifier to associated
information;
2) support of a reverse identifier resolution from associated information to a corresponding
identifier may be provided (see Note 1);
NOTE 1 – The reverse identifier resolution provides a means to find a specific identifier of an
object and its location in the physical world, from the associated information of the object. This is
like searching for a book and its location in a library by using the library catalogue.
3) it is recommended to support one-to-one association between an identifier and associated
information;
234 Rec. ITU-T Y.4108/Y.2213 (09/2008)