The Free Software Foundation (FSF) is a 501(c)(3) non-profit organization founded by Richard Stallman on October 4, 1985, to support the free software movement, with the organization's preference for software being distributed under copyleft ("share alike") terms, such as with its own GNU General Public License. The FSF was incorporated in Boston, Massachusetts, US, …

The group Open Source Initiative (OSI) defines and maintains a list of approved open-source licenses.OSI agrees with FSF on all widely used free-software licenses, but differ from FSF's list, as it approves against the Open Source Definition rather than the Free Software Definition.It considers Free Software Permissive license group to be a reference implementation of a Free …

In a dual licensing model, the vendor develops software and offers it under an open-source license but also under separate proprietary license terms. The proprietary version can be licensed to finance the continued development of the free open-source version. Customers may prefer a no-cost and open-source edition for testing, evaluation, proof of concept development, and …

In software engineering, a software design pattern is a general, reusable solution to a commonly occurring problem within a given context in software design. It is not a finished design that can be transformed directly into source or machine code. Rather, it is a description or template for how to solve a problem that can be used in many ...

Free Java implementations are software projects that implement Oracle's Java technologies and are distributed under free software licences, making them free software.Sun released most of its Java source code as free software in May 2007, so it can now almost be considered a free Java implementation. Java implementations include compilers, runtimes, class libraries, etc. …

In software engineering, a software development process is a process of dividing software development work into smaller, parallel, or sequential steps or sub-processes to improve design, product management.It is also known as a software development life cycle (SDLC).The methodology may include the pre-definition of specific deliverables and artifacts that are …

Lean software development is a translation of lean manufacturing principles and practices to the software development domain. Adapted from the Toyota Production System, it is emerging with the support of a pro-lean subculture within the agile community. Lean offers a solid conceptual framework, values and principles, as well as good practices, derived from experience, that …

Distinction from free and open-source software. Any software is source-available software as long its source code is distributed along with it, even if the user has no legal rights to use, share, modify or even compile it. It is possible for a software to be both source-available software and proprietary software (For example: Id Software Doom).. In contrast, the definitions of free …

El movimiento del software libre es un movimiento social [1] con el objetivo de obtener y garantizar las libertades que permiten a los usuarios de software ejecutarlo, estudiarlo, cambiarlo y redistribuir copias del mismo con o sin cambios. Sobre la base de las tradiciones y filosofías de la cultura hacker y el mundo académico de los años 1970, Richard Stallman fundó …

Free Pascal Compiler (FPC) is a compiler for the closely related programming-language dialects Pascal and Object Pascal.It is free software released under the GNU General Public License, with exception clauses that allow static linking against its runtime libraries and packages for any purpose in combination with any other software license.. It supports its own Object Pascal …