||creator - While the
Dublin Core Creator element is a single field used to document the
creator's name, the EML creator element and its sub-elements allow the
name, address, and other contact information of the creator to be
stored in discrete fields.
- Dublin Core states that the Subject should be "expressed as keywords,
key phrases or classification codes that describe a topic of the
resource." It also suggests that the keywords be selected
from "a controlled vocabulary or formal classification scheme." This concept is best expressed by the keywordSet element in
EML, which allows the source of the controlled vocabulary to be
documented, as well as the individual keywords.
- The Dublin Core suggests that the Description can take the form of an
abstract, as well as several other forms. As abstracts are the
most commonly used method of describing data and research, the abstract
element of EML is best suited to fill this role.
- Because not all types of information documented in EML, such as
protocols, will be published, the publisher element is not
included in the resource module. Instead, it can be found as
part of the modules that describe information that is likely to be
published. The most commonly used location for this element
- The Contributor element of Dublin Core defines "An entity responsible
for making contributions to the content of the resource."
While this is one means by which an entity can be affiliated
with a resource, it is not the only on. EML thus created the
associatedParty element, in which both the entity and it's specific
relationship to the resource can be documented. As with the
creator element, much more than the entity's name can be recorded
within the subdivisions of this element.
| citation | protocol | software] - Dublin Core's Type element describes "the nature or genre of the content of the resource"
in a single field. EML tries to document a good deal of the
structure of the resource as well, and the types of metadata needed
will vary by the genre of the resource. Because of this,
the resource type is shown by the choice of element in EML, rather than
by a specific field value. Thus, this is only an approximate match to
the Dublin Core.
- This is an approximate mapping. Dublin Core describes the information to be contained in the Format element as follows: "Typically, Format may include the media-type or dimensions of the
resource. Format may be used to identify the software, hardware, or
other equipment needed to display or operate the resource. Examples of
dimensions include size and duration." EML
attempts to capture these different pieces of information in separate
elements, so that they can be isolated as needed. Also, as with
publisher, not all types of resources, such as protocols, with have a
format. The physical element of EML, which captures many aspects of the
structure of the resource, is the closest match to this Dublin Core
element. The most commonly used location for the EML physical element
- EML's packageId is technically an attribute of the eml element, rather than an element of its own.
- This is an approximate mapping. The Source element of Dublin Core is used to describe a
"[r]eference to a resource from which the present resource is derived."
If a resource is derived from another resource, however, thus
should be some description of how the new resource was derived from the
old one. EML allows sources to be described in the methods module
via the dataSource element, accompanied by descriptions of the process
by which the present resource was derived. The dataSource element
is located at /eml/dataset/methods/methodStep/dataSource .
||xml:lang - The Dublin Core Language element is used to state
the langauge of the content of the resource. Since XML defines a
language attribute to document this information in
its specification, EML uses this structure rather than defining its
- The Relation element of Dublin Core is used to list a "A
reference to a related resource." Such references are handled by the
citation element of EML, which can hold a great deal of information
beyond the name. EML citation elements can be located in various places
in the scehma, depending on how the reference is related to teh
resource. For example, a reference to an external protocol would
go in /eml/dataset/methods/methodstep/citation, while a reference to a
taxonomic classification system would go in