Claus Wellenreuther (born 1935) is a German entrepreneur and the co-founder of the software company

SAP SE Sap is a fluid transported in xylem cells (vessel elements or tracheids) or phloem sieve tube elements of a plant. These cells transport water and nutrients throughout the plant. Sap is distinct from latex, resin, or cell sap; it is a sepa ...

Career

Wellenreuther was born in

Mannheim Mannheim (; Palatine German: or ), officially the University City of Mannheim (german: Universitätsstadt Mannheim), is the second-largest city in the German state of Baden-Württemberg after the state capital of Stuttgart, and Germany's ...

SAP: Die Gründer
at de.news-sap.com and studied business administration at

University of Mannheim The University of Mannheim (German: ''Universität Mannheim''), abbreviated UMA, is a public research university in Mannheim, Baden-Württemberg, Germany. Founded in 1967, the university has its origins in the ''Palatine Academy of Sciences'', ...

with a specialization in

operations research Operations research ( en-GB, operational research) (U.S. Air Force Specialty Code: Operations Analysis), often shortened to the initialism OR, is a discipline that deals with the development and application of analytical methods to improve decis ...

. He submitted his dissertation on ''

Markov processes Markov ( Bulgarian, russian: Марков), Markova, and Markoff are common surnames used in Russia and Bulgaria. Notable people with the name include: Academics *Ivana Markova (born 1938), Czechoslovak-British emeritus professor of psychology at ...

and their implementation on queueing systems'' in 1968. Afterwards Wellenreuther worked at IBM in Mannheim, where he was responsible for developing financial accountancy systems. In 1971 he left IBM to program a standard financial accountancy system with

batch processing Computerized batch processing is a method of running software programs called jobs in batches automatically. While users are required to submit the jobs, no other interaction by the user is required to process the batch. Batches may automatically ...

. He then joined his former IBM colleagues

Hasso Plattner Hasso Plattner (born 21 January 1944) is a German businessman. A co-founder of SAP SE software company, he has been chairman of the supervisory board of SAP SE since May 2003. As of August 2020, ''Forbes'' reported that he possessed a net worth ...

Dietmar Hopp Dietmar Hopp (; born 26 April 1940) is a German software engineer and billionaire businessman. He was one of the founders of SAP SE in 1972 with other former IBM employees Hans Werner Hector, Klaus Tschira, Claus Wellenreuther and Hasso Platt ...

, 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. 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. The "deal among friends" was heavily criticized by DCW customers that had explicitly decided for an alternative to SAP.SAP will DCW Software kaufen
In 2004 DCW was merged with the SAP subsidiary ''Steeb Anwendungssysteme GmbH''.

References

External links

{{DEFAULTSORT:Wellenreuther, Claus 1935 births Businesspeople in software German company founders 20th-century German businesspeople 21st-century German businesspeople Living people Businesspeople from Mannheim SAP SE people University of Mannheim alumni