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Example: |
Explanation (non-normative):
URIs are used to provide extensibility and a convenient way for organizations to distinguish one kind of transaction identifier from another.
For example, if Acme Corporation has purchase orders (one kind of business transaction) identified with an 8-digit number as well as shipments (another kind of business transaction) identified by a 6-character string, and furthermore the PostHaste Shipping Company uses 12-digit tracking IDs, then the following business transaction IDs might be associated with a particular EPC over time:
http://transaction.acme.com/po/12345678
http://transaction.acme.com/shipment/34ABC8
urn:posthaste:tracking:123456789012
(In this example, it is assumed that PostHaste Shipping has registered the URN namespace “posthaste” with IANA.)
An EPCIS Accessing Application might query EPCIS and discover all three of the transaction IDs; using URIs gives the application a way to understand which ID is of interest to it. |
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