Claus Wellenreuther

Claus Wellenreuther (born 1935 in Mannheim[1]) is a German entrepreneur and co-founder of software company SAP SE.

Career

Wellenreuther studied business administration at University of Mannheim with a specialization in operations research.[1]

He submitted his dissertation on Markov processes and their implementation on queueing systems in 1968.[2] Afterwards Wellenreuther worked at IBM in Mannheim, where he was responsible for developing financial accountancy systems.[3] In 1971 he left IBM to program a standard financial accountancy system with batch processing.[4] He then joined his former IBM colleagues Hasso Plattner, Dietmar Hopp, Hans-Werner Hector and Klaus Tschira to found the software company Systeme, Anwendungen und Produkte in der Datenverarbeitung in Weinheim, which would later become the SAP AG. Wellenreuther was primarily responsible for the architecture and the concept of the SAP R/2 financial accountancy module.[5]

Wellenreuther left the business in 1980 for health reasons and received a compensation of 1 million DM.

In 1982 he founded DCW Software (Dr. Claus Wellenreuther GmbH & Co. KG), which he developed into a specialist for middle-sized ERP software. The company was acquired by SAP in 2003.[6] The "deal among friends" was heavily criticized by DCW customers that had explicitly decided for an alternative to SAP.[7] In 2004 DCW was merged with the SAP subsidiary Steeb Anwendungssysteme GmbH.

gollark: It kind of makes sense. Causing the immune system to bother more/less or something.
gollark: You mean the other eleventh?
gollark: The NHS does actually have quite good web design, in my opinion.
gollark: This is actually quite impressive-looking, though. If only public health entities had this sort of thing, but correct.
gollark: You can make nicely designed websites for *anything*.

References
  1. SAP: Die Gründer Archived 13 April 2012 at the Wayback Machine at de.news-sap.com
  2. Claus Wellenreuther at the Mathematics Genealogy Project
  3. Unter 20 000 Monatsbuchungen ist Dialog nicht rentabel Archived 24 July 2012 at Archive.today, Computerwoche, 26 August 1977
  4. SAP: Langsam, aber gewaltig, Handelsblatt.com
  5. Am Anfang war die Buchhaltung ...
  6. SoftM: SAP-Beteiligung an DCW verbessert die eigene Position
  7. SAP will DCW Software kaufen Archived 19 January 2011 at the Wayback Machine
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