[dumpsterdiver]

I came across a saying once that proved itself apt after a brief stint working for the government:

Always spell out acronyms upon first use in any discrete communication.

The reason this is so apt in government work is because workers become so familiar with lazily throwing around acronyms that they forget what those letters represent. I've witnessed first hand a person confidently throwing around acronyms as if they knew all about it, only to find out that they knew pretty much nothing about it aside from the letters that comprise the acronym.

In the fine article above, the acronym was clarified upon first use, and so all is well:

"Alliance to foster global collaboration for Universal Scene Description (USD)"