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کامپیوتر و شبکه::
نابهنجار
All sections of this document, with the exception of Sections 2, 33, and 4 are normative, except where explicitly noted as non-normative.
Non-Normative: Explanation: While for the purposes of this specification the terms "event data" and "master data" mean nothing more than "data that fits the structure provided here," the structures defined in the Abstract Data Model Layer are designed to provide an appropriate representation for data commonly requiring exchange through EPCIS.
Non-Normative: Explanation: In the present version of this specification, only one hierarchical relationship is provided for, namely the relationship encoded in the special "children" list.
Non-Normative: Amplification: As explained in Section 6.3, Data Definition Modules defined in this specification and by companion specifications developed by the EPCIS Working Group will tend to include definitions of Value Types, Event Types, Event Fields, and Vocabulary Types, while modules defined by other groups will tend to include definitions of Event Fields that extend existing Event Types, master data attributes that extend existing Vocabulary Types, and Vocabulary Elements that populate existing Vocabularies.
Non-Normative: Explanation: This reflects a design decision not to consider individual trade item instances as Vocabulary Elements having master data, owing to the fact that trade item instances are constantly being created and hence new EPCs representing trade items are constantly being commissioned.
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