Some questions remain
•Is OAI-PMH really low-barrier infrastructure?
–NSDL experience indicates that significant barriers remain
•Utility of core metadata (unqualified DC)
–NSDL and other experience raises doubts
•Utility outside of resource discovery
–Certification, Reference linking, etc.
Some indicators of success, but there might still be some basic questions to be answered.   What does it mean to be low barrier?  Might not get there.   Configuration can’t be automatic.  Connection between the data and the dissemination of MD.  Coming up with the metadata.

Is unqual DC worth anything?  Really variable – although machine learning might be able to handle this but simple automatic harvesting might not get stuff of value.
This is a broader issue than OAI.

There might be further applications – we don’t really know.