Persistent Identifier

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A persistent identifier , or PID for short , is a code that enables a digital resource, for example a magazine article, to be clearly identified. The associated PID code is permanently recognizable - especially on the Internet - and thus makes an object permanently identifiable and discoverable.

Persistent Identifier

In principle, it is possible to define a persistent identifier for every object that can be described. It can be abstract things, such as measured radiation or a worldview, or concrete things, such as a book or magazine article. The associated PID code is permanently recognizable and thus makes an object permanently identifiable and discoverable. Furthermore, PIDs are used to link data with their data producers or with resources based on them. This offers users further opportunities for research and a better understanding of the property.

In addition, PIDs prevent so-called dead links, which can be caused by server errors or human hands. An example of this phenomenon would be an organization that wants to move its digital assets to a new website or is reorganizing its website. If necessary, it loses interest in magazine articles or other objects with older content and does not pass them on. If a user tries to access this article again, they will be redirected to a broken link - a dead link. On the one hand, this is frustrating for users and, on the other hand, it is also a problem for important scientific work. PIDs can help here. They ensure that digital objects, described and cataloged, are constantly accessible through their specific code.

Due to the abovementioned capabilities of the persistent identifiers, the specific identifiers are mainly used for digital archiving. However, it is important to maintain and update the information regularly. The responsible organization of the property is responsible for this.

The structure looks like this:

  1. A code as a specific identifier for the object e.g. B. Magazine Articles
  2. A code for the service that can permanently call the digital resource or object, e.g. B. Publishing magazine.

Function:

  1. A digital object receives a specific persistent identifier
  2. This is stored in a directory service called a resolver
  3. Additional information, such as the access address (URL) or certain metadata (information about the properties of the object) are fed into the resolver
  4. The maintenance and regular updating of the PIDs and other information are necessary from now on.

A clear advantage here is that when access addresses or metadata are changed, the persistent identifiers always remain identical and do not change after the specific code has been assigned for the first time. The object can actually be called up permanently and in the future at any time under this unique persistent identifier.

Examples

Examples of types of PIDs are:

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  • Clarin Eric: Comparison of PID Systems. Retrieved March 28, 2018.
  • Esther Krähwinkel: Research Data Management . November 3, 2014, accessed March 28, 2018.
  • Jorgen Stamp: Persistent Identifier . November 7, 2013, accessed March 28, 2018.
  • Jens Klump, Robert Huber: 20 Years of Persistent Identifiers - Which Systems are Here to Stay? Data Science Journal 16, 1, 2017, 14.

Web links

Individual evidence

  1. ↑ Jorgen Stamp, 2013.
  2. ↑ Jorgen Stamp, 2013.
  3. ↑ Esther Krähwinkel, 2014.
  4. ↑ Jorgen Stamp, 2013.
  5. ↑ Esther Krähwinkel, 2014.
  6. ↑ Creative Commons, 2018a.
  7. ↑ Jorgen Stamp, 2013.
  8. ↑ Esther Krähwinkel, 2014.