 : Great examples, all...  Since there is currently no known need for disambiguation, both are probably valid.  When speaking or writing about technology, I err on the side of using the full name unless it's really moved from jargon to a common cultural lingo.  For example, you could speak with the common man about DVDs, but not about FVD (hence the former is a direct link, and the latter is a redirect).  Most examples I was able to find are disambiguations of TLAs used in multiple subject areas, so I'm not seeing much precedent one way or the other.  If you're able to find sources, outside of specific industry, that make use of the term, that would probably help you build that case.    