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 47)
Tübingen, Germany
Residence Erlangen, 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 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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