## Adding Metadata

You can also include basic Dublin Core Metadata in the XML exchange file.

Each model can be further described by the use of Metadata. This constitutes an optional set of elements that can be used to describe the model itself. The use of metadata to further describe a model can be useful to assert such things as publisher, rights and usage, copyright, and licensing. The Dublin Core Metadata Element Set consists of 15 metadata elements:

Title | A name given to the resource.
Creator | An entity primarily responsible for making the resource.
Subject | The topic of the resource.
Description | An account of the resource.
Publisher | An entity responsible for making the resource available.
Contributor | An entity responsible for making contributions to the resource.
Date | A point or period of time associated with an event in the lifecycle of the resource.
Type | The nature or genre of the resource.
Format | The file format, physical medium, or dimensions of the resource.
Identifier | An unambiguous reference to the resource within a given context.
Source | A related resource from which the described resource is derived.
Language | A language of the resource.
Relation | A related resource.
Coverage | The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant.
Rights | Information about rights held in and over the resource.

If all the fields are left blank then no Metadata is included in the exported XML file.