VistA on Grokipedia

[Rob Kellock]

Grokipedia (which has only been 'live' for a couple of months) seems to do a reasonable job of summarising VistA's history including it's replacement via the VA's Federal EHRM project (https://grokipedia.com/page/VistA). Wikipedia's article is more focused on what VistA does, with all the modules listed (https://en.wikipedia.org/wiki/VistA). Both sites when read together give you a comprehensive overview of what VistA is.