Post-holiday registry riddle

Title: Post-holiday registry riddle

Happy new year,

Another riddle just for starting the new year:

Knowing that ebXML Registry can be thought of as a service registry, and assuming (hypotetically) that you were asked to categorize an ebXML Registry as a tool for design-time or run-time phases, which of the 2 choices "desing-time and run-time" or "design-time only" would you pick Registry?

I heard differents point of view on this stuff and I'd like to have your feedback.

Thanks,

Ivan