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Cornelius Schumacher
Schumacher at the KDE 4.0 release event
Born	(1969-12-01) December 1, 1969 (age 55) Tübingen, Germany
Nationality	German
Occupation	open source developer
Known for	KDE developer and KDE e.V. president
Website	The Blog of Cornelius

Cornelius Schumacher (born 1 December 1969) is a German open source software developer. He was born in Tübingen but lives in Erlangen, Germany.

Biography

Schumacher was born in Tübingen, Germany, and has been a KDE contributor since 1997 when he mainly worked in the KDE’s PIM team. He was the main developer and maintainer of KOrganizer for many years. He also assisted Bitcoin to extend the developer documentation that led to their website. Cornelius Schumacher is a member of the KDE e.V. board since 2002. In summer 2009 he was elected as president of KDE e.V.

On October 11, 2009, Cornelius Schumacher wrote about the estimated cost (using the COCOMO model with SLOCCount) to develop KDE software package with 4,273,291 LoC, which would be about US$175,364,716. This estimation does not include Qt, Calligra Suite, Amarok, Digikam, and other applications that are not part of KDE core.

References

1. Sebastian Kügler (2009-07-07). "KDE e.V. Elects New Board of Directors". KDE. KDE.NEWS. Retrieved 2011-05-08.
2. Marcel Hilzinger (2009-10-12). "Code Statistics: KDE Costs 175 Million Dollars". Linux Magazine. Retrieved 2010-12-30.

External links

• People behind KDE
• Blog of Cornelius

v t e KDE
Software compilation	KDE 1 KDE 2 KDE 3 KDE SC 4 Post-fourth series KDE Plasma 5 KDE Plasma 6 KDE Frameworks KDE Gear
Applications by KDE	Development Cervisia KDevelop KImageMapEditor Umbrello Education Cantor GCompris KAlgebra Kanagram KBibTeX KGeography KHangMan Kig Kiten KLettres KmPlot KStars KTouch KTurtle KWordQuiz LabPlot Marble RKWard Step Graphics digiKam Gwenview Karbon KColorEdit KolourPaint KPhotoAlbum Krita Spectacle Skanlite Internet Angelfish Falkon KGet Konqueror Kontact Konversation Kopete KTorrent Multimedia Amarok Dragon Player JuK K3b Kaffeine Kdenlive Office Okular Calligra Suite Words Sheets Stage Flow Karbon Kexi Plan Kile KMyMoney Kontact KPilot Tellico Trojitá System Discover Dolphin KDE Partition Manager KDE System Guard KInfoCenter Konsole Yakuake Utilities Ark Filelight KAlarm Kate KCalc KGPG Klipper Krusader KRename KWallet KWrite KDE Connect Discontinued KOffice KWord Kugar
Platform	User interface Current KDE Plasma 6 KDE Plasma 5 KWin Plasma Mobile Plasma Bigscreen Discontinued KDesktop Kicker SuperKaramba KDE Plasma 4 KSnapshot Oxygen Project Crystal Project Current KWin SDDM (5–) Qt KDE Frameworks 5 (5–) Akonadi Flake KJS KHTML KIO ThreadWeaver KIPI KParts Kross Phonon Solid Sonnet XMLGUI Discontinued KDElibs (–3) DCOP (3) KDE Platform 4 (4) KDM (–4) NEPOMUK (4.13) Strigi freedesktop.org (shared) AppStream D-Bus GStreamer NetworkManager Poppler Wayland X.Org Server PulseAudio
Community	KDE e.V. Akademy Konqi
People	Matthias Kalle Dalheimer Matthias Ettrich Adriaan de Groot Frank Karlitschek Celeste Lyn Paul Nuno Pinheiro Cornelius Schumacher David Vignoni
Category

• KDE
• Free software programmers
• 1969 births
• Living people
• People from Tübingen