DELFOR Delivery Schedule Message - Eurofer
DELFOR Delivery Schedule Message - Eurofer
DELFOR Delivery Schedule Message - Eurofer
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UN/EDIFACT D97.A <strong>DELFOR</strong> - <strong>Delivery</strong> schedule message<br />
2. DATA MODEL<br />
2.1 Data Model Format<br />
The data model has been created to make it possible for potential users to understand the<br />
<strong>Eurofer</strong> subset of the <strong>Delivery</strong> schedule message. This data model gives the following<br />
information :<br />
- contents of the information (data elements) that can occur in the message,<br />
- relationships between the different data elements,<br />
- grouping of the data elements within the data entities,<br />
- and the relationship between data entities.<br />
To simplify the understanding of the data model, the model is defined at a summary level,<br />
description specifying when necessary a group of data elements instead of each data<br />
element.<br />
The data model consists of data entities, the relationships between those data entities and the<br />
attributes (data elements) in each data entity.<br />
An entity specifies an object against which information is held; it has a name, a description<br />
and attributes.<br />
An attribute describes a unique characteristic (information which can appear on the delivery<br />
schedule); it has a name, a description and a value.<br />
The relationships of the data entities within the data model are reflected in the structure of<br />
the diagram in chapter 2.2.<br />
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