In many scenarios involving SPARQL endpoints, it would be great to have machine-readable metadata about the endpoint. What is it called, what is inside, what can it do?
One place where this comes up is with generic SPARQL browsers. They should at least be able to display a human-readable title and description of the endpoint. Another place is SPARQL query federation where the federation engine needs to know a bit about the endpoint’s capabilities.
ESW Wiki: SPARQL Endpoint Description
I’ve discussed this quite a bit at JUC with Max Völkel and Bastian Quilitz; Dave Beckett also joined in. The wiki page linked above is a writeup of my notes. If you’re running a SPARQL endpoint or writing SPARQL client or server software, please have a look and add your thoughts.