Cornelius Schumacher 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. 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 United States$175,364,716.
This estimation does not include Qt, Calligra Suite, Amarok, Digikam, and other applications that are not part of KDE core.
Cornelius Schumacher is a member of the KDE e.V. board since 2002.