Cornelius Schumacher

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Cornelius Schumacher
KDE 4.0 Release Event-Cornelius Schumacher-2.jpg
Cornelius Schumacher on KDE 4.0 release event
Born (1969-12-01) December 1, 1969 (age 49)
Tübingen, Germany
ResidenceErlangen, Germany
Occupationopen source developer
Known forKDE developer and KDE e.V. president
WebsiteThe Blog of Cornelius

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


He 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. 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.[1]

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.[2] This estimation does not include Qt, Calligra Suite, Amarok, Digikam, and other applications that are not part of KDE core.


  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.

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