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Proprietary software is a subset of non-free software, a term defined in contrast to free and open-source software; non-commercial licenses such as CC BY-NC are not deemed proprietary, but are non-free.
Diagram of software under various licenses according to the FSF and their The Free Software Definition: on the left side "free software", on the right side "proprietary software". On both sides, and therefore mostly orthogonal, "free download" . A software license is a legal instrument governing the use or redistribution of software.
While such software often later becomes open source software or public domain, other constructs and software licenses exist, for instance shared source or creative commons licenses. [1] [2] If the source code is given out without specified license or public domain waiver it has legally to be considered as still proprietary due to the Berne ...
Software licensing agreements usually prohibit resale, enabling the company to maximize revenue. [20] Proprietary software is usually offered under a restrictive license that bans copying and reuse and often limits the purchaser to using the software on one computer. [21] [22] Source code is rarely available.
The BSD License allows proprietary use and allows the software released under the license to be incorporated into proprietary products. Works based on the material may be released under a proprietary license as closed source software, allowing usual commercial usages under them.
There are a wide variety of free software licenses that define how a program can be used, modified, and sold commercially (see GPL, LGPL, and BSD-type licenses). FOSS may also be funded through donations. A software philosophy that combines aspects of FOSS and proprietary software is open core software, or
This table lists for each license what organizations from the FOSS community have approved it – be it as a "free software" or as an "open source" license – , how those organizations categorize it, and the license compatibility between them for a combined or mixed derivative work. Organizations usually approve specific versions of software ...
Under a FOSS business model, software vendors may charge a fee for distribution [4] and offer paid support and software customization services. Proprietary software uses a different business model, where a customer of the proprietary software pays a fee for a license to use the software.