The Open Source Initiative's (OSI) definition is recognized[who?] as the standard or de facto 
definition. Eric S. Raymond and Bruce Perens formed the organization in February 1998. With 
about 20 years of evidence from case histories of closed and open development already provided by 
the Internet, OSi continued to present the "open source" case to commercial businesses. They 
sought to bring a higher profile to the practical benefits of freely available source code, and wanted 
to bring major software businesses and other high-tech industries into open source. 
OSI uses The Open Source Definition to determine whether it considers a software license open 
source. The definition was based on the Debian Free Software Guidelines, written and adapted 
primarily by Perens. [5] [6] [7] Perens did not base his writing on the "four freedoms" of Free 
Software from the Free Software Foundation (FSF), which were only widely available later.[8] 
Under Perens' definition, open source describes a broad general type of software license that makes 
source code available to the general public with relaxed or non-existent copyright restrictions. The 
principles, as stated, say absolutely nothing about trademark or patent use and require absolutely no 
cooperation to ensure that any common audit or release regime applies to any derived works. It is an 
explicit "feature" of open source that it may put no restrictions on the use or distribution by any 
organization or user. It forbids this, in principle, to guarantee continued access to derived works 
even by the major original contributors.[citation needed] 
Despite initially accepting it,[9] Richard Stallman of the FSF now flatly opposes the term "Open 
Source" being applied to what they refer to as "free software". Although it is clear that legally free 
software does qualify as open source, Stallman considers that the category is abusive.[10] Critics 
also oppose the professed pragmatism of the Open Source Initiative, as they fear that the free 
software ideals of freedom and community are threatened by compromising on the FSF's idealistic 
standards for software freedom. [11] [12] 
Increasingly[citation needed], the consensus term "free and open source software" is used by the 
communities at large to describe the common ground between free software and open source 
software.

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optics

  • 1. The Open Source Initiative's (OSI) definition is recognized[who?] as the standard or de facto definition. Eric S. Raymond and Bruce Perens formed the organization in February 1998. With about 20 years of evidence from case histories of closed and open development already provided by the Internet, OSi continued to present the "open source" case to commercial businesses. They sought to bring a higher profile to the practical benefits of freely available source code, and wanted to bring major software businesses and other high-tech industries into open source. OSI uses The Open Source Definition to determine whether it considers a software license open source. The definition was based on the Debian Free Software Guidelines, written and adapted primarily by Perens. [5] [6] [7] Perens did not base his writing on the "four freedoms" of Free Software from the Free Software Foundation (FSF), which were only widely available later.[8] Under Perens' definition, open source describes a broad general type of software license that makes source code available to the general public with relaxed or non-existent copyright restrictions. The principles, as stated, say absolutely nothing about trademark or patent use and require absolutely no cooperation to ensure that any common audit or release regime applies to any derived works. It is an explicit "feature" of open source that it may put no restrictions on the use or distribution by any organization or user. It forbids this, in principle, to guarantee continued access to derived works even by the major original contributors.[citation needed] Despite initially accepting it,[9] Richard Stallman of the FSF now flatly opposes the term "Open Source" being applied to what they refer to as "free software". Although it is clear that legally free software does qualify as open source, Stallman considers that the category is abusive.[10] Critics also oppose the professed pragmatism of the Open Source Initiative, as they fear that the free software ideals of freedom and community are threatened by compromising on the FSF's idealistic standards for software freedom. [11] [12] Increasingly[citation needed], the consensus term "free and open source software" is used by the communities at large to describe the common ground between free software and open source software.