Alternative terms for free software
naming controversy
Alternative terms for free software, such as OSS, FOSS, and FLOSS, have been a recurring issue among free and open-source software users from the late 1990s onwards. These terms share almost identical licence criteria and development practices.
In 1983 Richard Stallman launched the free software movement and founded the Free Software Foundation to promote the movement and to publish its own definition. Others have published alternative definitions of free software, notably the Debian Free Software Guidelines. In 1998, Bruce Perens and Eric S. Raymond began a campaign to market open-source software and founded the Open Source Initiative, which espoused different goals and a different philosophy from Stallman's.
Terms
Free software
In the 1950s to the 1990s software culture, the "free software" concept combined the nowadays differentiated software classes of public domain software, Freeware, Shareware and FOSS and was created in academia and by hobbyists and hackers.
When the term "free software" was adopted by Richard Stallman in 1983, it was still ambiguously used to describe several kinds of software. In February 1986 Richard Stallman formally defined "free software" with the publication of The Free Software Definition in the FSF's now-discontinued GNU's Bulletin as software which can be used, studied, modified, and redistributed with little or no restriction, his four essential software freedoms. Richard Stallman's Free Software Definition, adopted by the Free Software Foundation (FSF), defines free software as a matter of liberty, not price, and is inspired by the previous public domain software ecosystem. The canonical source for the document is in the philosophy section of the GNU Project website, where it is published in many languages.
“Alternative terms for free software” enters the record as naming controversy. Crown Archives preserves that source wording while asking what Alternative, terms and free can confirm, complicate or overturn.
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“Alternative terms for free software” is worth following because a concise public description often conceals a longer documentary argument. Here, Alternative, terms and free provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 24, 2026. The linked authority identifier is Q16242796. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1983, 1998 and 1986.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Alternative terms for free software” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.