This was posted by someone on a higher ed edtech listserv:

“I would no more choose an LMS today which doesn’t comply 100% with 1) IMS Question & Test Interoperability 2)Learning Tools Interoperability and 3) Learning Analytics Interoperabilty (either xAPI or Caliper) than I would agree to set my hair on fire while smoking a joint and standing downwind of a petroleum processing plant.”

Brilliant 🙂

Update:
Posted with permission of the original author:
Laura Gekeler
LMS Administrator
Teaching and Learning Technologies
Apereo Foundation Board ’14-2017
University of Notre Dame