SEMIC, the Semantic Interoperability Community recently published 10 Rules for Persistent URIs. The article states, "The attached report documents a survey performed by ISA Action 1.1 on Semantic Interoperability in order to explore good practices on the publication of Uniform Resource Identifiers (URI), both in terms of format and of their design rules and management. The survey studied approximately 20 cases, coming among others from EU agencies and services, EU Member States and standardization bodies and initiatives, where URI management and persistence have been subject to a policy (as opposed to merely ad-hoc design)."
The article continues, "The survey concludes with a distillation of the available information as a set of good practices that can and should be followed by publishers of URI sets. These must be are summarised in the figure [above]." Download the report and additional documentation here.
Image: Courtesy SEMIC