Being able to unambiguously locate and access digital data resources and then associate them with the related metadata is becoming more and more essential in the current digital era.
This will allow the citation, retrieval and preservation of these data in a reliable manner. Past CESSDA projects have shown that there is a need to introduce the use of persistent identification (PID) for data since maintaining and resolving PID is seen as a must for repository systems with a long-term strategy.
With regard to this, CESSDA held a workshop on PID within CESSDA. The workshop took place on 18-19 February 2016 at GESIS in Cologne, Germany.