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Enabling Generation of Dublin Core Meta Tags for Your Website

In simple language, Dublin Core Schema stands for a set of vocabulary terms that are used to describe digital resources such as videos, images, web site pages, audio, and others. There are terms for describing physical resources such as books, CD, and other artwork objects as well.

Originally, the core set of 15 classic Metadata is known as the Dublin Core Metadata Element Set (DCMES). All the terms can be found at Dublin Core Metadata initiative website usually known as DCMI. These terms help to implement Semantic Web to streamline the standards throughout the web. All of these terms are recognized by states and governments, used by popular directories, even by Bing, Baidu, and Yandex for example.

For a bit of background, these terms were named Dublin because it’s a state of Ohio, USA where the scheme was originated in 1995 during OCLC/NCSA (Online Computer Library Center) Metadata Workshop.

There are two levels of Dublin Core Standards; one is named as simple whereas other is considered to be qualified. The Simple Dublin Core covers 15 elements whereas Qualified Dublin Core includes 3 additional terms namely Audience, Provenance and RightsHolder. There are other groups of refinement tags known as qualifiers that improve the semantics of elements that it becomes useful in the resource directory.

The original 15 Metadata elements are as follows. Given are the definitions alongside the terms to better understand each term.

  1. Title
    The title is the meaningful name given to the resource.
  2. Creator
    The individual, company or precisely the entity (even service) that’s responsible for making the resource.
  3. Subject
    The primary topic of the given resource. The subject must be explained in terms of keywords, key phrases or classification codes.
  1. Description
    A detailed summary of the resource. The description may include abstract, table of contents or even a graphical representation. But it’s not limited to just that, whatever is suitable to describe the resource must be provided.
  2. Publisher
    The entity including company, service or person who makes the resource available to all.
  3. Contributor
    The person, organization or a service that has contributed towards this resource. Usually, the name of a contributor is used to indicate the entity.
  4. Date
    To associate a point, range or periods of the timeline for the events in the lifecycle of the resource.
  5. Type
    Mentions about the nature and genre of the resource. It’s preferred to use a controlled vocabulary, for example, the DCMI Type Vocab.
  6. Format
    The format property element is used to describe the file format, physical medium, and dimensions of the format. The use of controlled vocab is recommended, such as MIME Internet Media Types.
  7. Identifier
    A clear-cut reference to the resource within the given context. The best practice is to identify the resources by means of a string, some text that conforms to a formal identification system.
  8. Source
    The relevant primary resource from which the described resource is derived. It could be in whole or in part as well.
  9. Language
    To mention the language used in the resource, use of limited and controlled vocabulary is suggested such as RFC 4646
  10. Relation
    A related resource to identify by means of a string conforming to a formal identification system.
  11. Coverage
    The spatial topic of the resource or the jurisdiction under which the resource is relevant.
  12. Rights
    Providing information about the rights held in and over the resource. It should preferably contain all the details about intellectual property rights.

To activate Dublin Core settings, you need to enable top settings button located under the SEO > Advanced > Dublin Core tab.

Check “Enable Dublin Core meta tags (dc title, dc description, dc source, dc language, dc relation, dc subject)” to enable the Dublin Core meta tags.

Finally, click Save Changes and you’re done setting your primary Dublin Core meta tags automatically.  Following are the meta tags that are set automatically:

  • Title
  • Description
  • Source
  • Language
  • Relation
  • Subject
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