Open-source software development

open-source developmentopen source software developmentopen-sourceopen developmentopen-source software projectdevelopment communityopen software developmentopen source softwareopen-sourced
Open-source software development is the process by which open-source software, or similar software whose source code is publicly available, is developed by an open-source software project.wikipedia
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Eric S. Raymond

Eric RaymondEric Steven RaymondRaymond, Eric
In 1997, Eric S. Raymond wrote The Cathedral and the Bazaar.
Soon after this experience, in 1997, he wrote the essay "The Cathedral and the Bazaar", detailing his thoughts on open-source software development and why it should be done as openly as possible (the "bazaar" approach).
The Cathedral and the BazaarOpen-source softwareJargon FileOpen-source software developmentOpen Source Initiative

Open-source-software movement

open-source movementopen source communityopen source movement
Open-source software development is the process by which open-source software, or similar software whose source code is publicly available, is developed by an open-source software project.
Massachusetts Institute of TechnologyOpen sourceRichard StallmanOpen-source softwareThe Open Source Definition

Open-source license

open sourceopen-sourceopen source license
These are software products available with its source code under an open-source license to study, change, and improve its design.
License compatibilityOpen-source softwareSource-available softwareComparison of free and open-source software licensesFree software

Firefox

Mozilla FirefoxFirefox browserSpread Firefox
Examples of some popular open-source software products are Mozilla Firefox, Google Chromium, Android, LibreOffice and the VLC media player.
Mozilla CorporationGecko (software)Firefox for AndroidMozilla FoundationFirefox for iOS

Chromium (web browser)

ChromiumChromium web browser(Chromium based)
Examples of some popular open-source software products are Mozilla Firefox, Google Chromium, Android, LibreOffice and the VLC media player.
Google ChromeWidevineOpenBSDVP8Adobe Flash Player

Android (operating system)

AndroidAndroid operating systemList of Android devices
Examples of some popular open-source software products are Mozilla Firefox, Google Chromium, Android, LibreOffice and the VLC media player.
Android TVWear OSHTC DreamLinux kernelFire OS

LibreOffice

LibreOffice ImpressLibreOffice OnlineLibre Office
Examples of some popular open-source software products are Mozilla Firefox, Google Chromium, Android, LibreOffice and the VLC media player.
The Document FoundationOpenOffice.orgApache OpenOfficeLibreOffice CalcLibreOffice Writer

VLC media player

VLCVLC playerlibVLC
Examples of some popular open-source software products are Mozilla Firefox, Google Chromium, Android, LibreOffice and the VLC media player.
VideoLANLibavcodecFFmpegLibdvdcssSourceForge

Tim Berners-Lee

Sir Tim Berners-LeeTim Berners LeeTimothy Berners-Lee
Open-source software development has been a large part of the creation of the World Wide Web as we know it, with Tim Berners-Lee contributing his HTML code development as the original platform upon which the internet is now built.
World Wide WebHypertext Transfer ProtocolWorld Wide Web FoundationWorld Wide Web ConsortiumMassachusetts Institute of Technology

Metamodeling

metamodelMeta-modelingmeta-model
This diagram is made using the meta-modeling and meta-process modeling techniques.
Metadata modelingMeta-process modelingISO/IEC 24744KermetaKriging

Meta-process modeling

SPEMmeta-process modelSoftware Process Engineering Metamodel
This diagram is made using the meta-modeling and meta-process modeling techniques.
Process modelingMethod engineeringModel-driven architectureMetamodelingMeta-Object Facility

Not invented here

NIH syndromeNot-Invented-Hereconsulted me
It's a common mistake to start a project when contributing to an existing similar project would be more effective (NIH syndrome).
Reinventing the wheelOrganizational cultureResearchBelief perseveranceTurf war

Fork (software development)

forkforkedforks
XEmacsBranching (version control)Free and open-source softwareMariaDBLibreOffice

Linux kernel

LinuxLinux kernel mainlinekernel
Examples of this type of project include the Linux kernel, the Firefox web browser and the LibreOffice office suite of tools.
LinuxAndroid (operating system)Linus TorvaldsLinux kernel interfacesGNU

Linux

GNU/LinuxLinux on the desktopLin
There are many Linux distributions (such as Debian, Fedora Core, Mandriva, Slackware, Ubuntu etc.) which ship the Linux kernel along with many user-land components.
Linux kernelLinus TorvaldsFree and open-source softwareLAMP (software bundle)Supercomputer

Debian

Debian GNU/LinuxDebian LinuxDebian Project
There are many Linux distributions (such as Debian, Fedora Core, Mandriva, Slackware, Ubuntu etc.) which ship the Linux kernel along with many user-land components.
List of Debian project leadersIan MurdockDebian Free Software GuidelinesLinux distributionDebian Social Contract

Fedora (operating system)

FedoraFedora CoreFedora Linux
There are many Linux distributions (such as Debian, Fedora Core, Mandriva, Slackware, Ubuntu etc.) which ship the Linux kernel along with many user-land components.
Linux distributionGNOMERed Hat Enterprise LinuxRed HatDelta update

Mandriva

MandrakeSoftMandriva S.A.Mandriva Linux
There are many Linux distributions (such as Debian, Fedora Core, Mandriva, Slackware, Ubuntu etc.) which ship the Linux kernel along with many user-land components.
Mandriva LinuxDesktop Linux ConsortiumOpenMandriva LxLycoris (company)Mageia

Slackware

Slackware LinuxpkgtoolSlackintosh
There are many Linux distributions (such as Debian, Fedora Core, Mandriva, Slackware, Ubuntu etc.) which ship the Linux kernel along with many user-land components.
Patrick VolkerdingLinux distributionSUSE LinuxSoftlanding Linux SystemDropline GNOME

Ubuntu

Ubuntu LinuxUbuntu operating systemUbuntu (operating system)
There are many Linux distributions (such as Debian, Fedora Core, Mandriva, Slackware, Ubuntu etc.) which ship the Linux kernel along with many user-land components.
Ubuntu version historyCanonical (company)OpenStackLinux distributionMark Shuttleworth

Perl

Perl 5Perl programming languagePerl Script
There are other distributions, like ActivePerl, the Perl programming language for various operating systems, and Cygwin distributions of open-source programs for Microsoft Windows.
Interpreter (computing)Larry WallLearning PerlRegular expressionSed

Cygwin

CygnixCygwin projectWindows/Cygwin
There are other distributions, like ActivePerl, the Perl programming language for various operating systems, and Cygwin distributions of open-source programs for Microsoft Windows.
MinttyCommand-line interfaceMinGWPOSIXRxvt

Microsoft Windows

WindowsPCMS Windows
There are other distributions, like ActivePerl, the Perl programming language for various operating systems, and Cygwin distributions of open-source programs for Microsoft Windows.
MicrosoftWindows 9xOperating systemWindows NTMS-DOS

Berkeley Software Distribution

BSDBSD Unix*BSD
Other open-source projects, like the BSD derivatives, maintain the source code of an entire operating system, the kernel and all of its core components, in one revision control system; developing the entire system together as a single team.
FreeBSDOpenBSDNetBSDResearch UnixComputer Systems Research Group

Version control

revision controlversion control systemsource control
Open-source software development is the process by which open-source software, or similar software whose source code is publicly available, is developed by an open-source software project. Other open-source projects, like the BSD derivatives, maintain the source code of an entire operating system, the kernel and all of its core components, in one revision control system; developing the entire system together as a single team.
Software configuration managementEdition (book)Collaborative softwareBranching (version control)Wiki