Sigfrid Gahse

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Sigfrid Gahse (2017)

Sigfrid Gahse (born February 28, 1938 in Erfurt ) is a German entrepreneur, scientist and artist.

Life

His father was a commercial clerk in sales for textile companies, his mother a housewife. Caused by the Second World War and the frequent relocation of his parents, he attended 7 schools before he was able to take his Abitur in Stuttgart in the spring of 1958 at the age of 20 . Intermediate stops were Breslau, a village near Hanover and a small town in the Upper Palatinate (Bavaria).

Gahse studied mathematics in Stuttgart (degree: mathematician, 1962) and economics in Stuttgart, Tübingen and Mannheim (degree: Dr. rer. Pol., 1967).

In 1965 he married the future writer Zsuzsanna Gahse in Stuttgart . They have two children together. The marriage was divorced in 1996. Gahse moved to Leonberg in 1998 , to Berlin in 2010 and back to Leonberg in 2013.

Professional Activities

Gahse began his professional career on December 15, 1962 at IBM Germany in Böblingen as a software developer. He was one of the first in Germany to develop standard software for the commercial sector. The standard software for materials management in manufacturing companies was used by around 200 large German companies within a few years. After five years of engineering, he switched to the commercial sector. The new topic was called: Controlling. In 1967 he became head of business administration at a large company in Stuttgart.

In 1969 he founded his own company (OSG) with the offer: management consulting and software production and sales for commercial administration. The 1970s were a wild time of departure for him: cooperation with computer manufacturers and dealers, a series of lectures in Cairo on behalf of the United Nations Industrial Development Organization (UNIDO) for the planning ministers of the Arab League, several years of consultant with general power in a large one Companies in the automotive supply industry. In 1988 he took on partners in his company, which grew as a result. To secure jobs in view of the global markets, he sold his shares to a global player in 2000 and left 'his company' on February 28, 2003.

Scientific work

Movements of a space pendulum

  • Diploma thesis: "Representation of the movements of a spatial pendulum in the phase plane" at the chair for technical mechanics of Kurt Magnus in the faculty for mechanical engineering at the University of Stuttgart, 1962

dynamic lot size

  • In 1965 he formulated the ' dynamic (or sliding economic) lot size ', a computational algorithm for manufacturing control systems, in: Neue Betriebswirtschaft, Volume 18 (1965), p. 4

mathematical forecasting method

  • Publication and use of mathematical forecasting methods in operational reality. In this context he formulated the Gaussian or Gahse function.

Liquidity forecasts

  • Dissertation: Liquidity prognoses on the basis of phase sequences' with the aid of mathematical methods and created algorithms for the determination of commercial value / time series within company processes (1967). Chair of Business Administration from Heinz Langen, University of Mannheim.

Teaching activities

Gahse worked for German seminar providers for business content and as a speaker in large companies. Topics were the future of data processing, purchasing, cost and system controlling, production optimization, and operations research.

For seven years he was a lecturer at the Stuttgart University of Technology (HFT) with the lecture 'Business Administration for Mathematicians'

Social engagement

Gahse has also been socially committed in Guatemala (sponsorship), Kyrgyzstan (expansion of a zoo and free admission for children), Mauritania (family support) and Kenya (foundation of an association to promote a project against the circumcision of young women and forced marriage).

Travel and travel reports

After finishing his professional life, Gahse travels. These included a bike tour through the Baltic States and the Berlin - Copenhagen long-distance bike tour, living with nomads in Kyrgyzstan and Mauritania (Sahara), hiking in the Sahara and on the Yemeni island of Socotra, climbing Kilimanjaro and visiting the Maya in Guatemala, the Maasai in Kenya and the Maori in New Zealand, travels through Patagonia, Thailand, Canada, Ladakh and Yemen. On these trips he writes diaries and takes photos. See homepage link under web links.

Artistic activities

He shows his photos in exhibitions, on postcards and in wall calendars.

Solo exhibitions:

  • 2008: Künstlerhaus, Leonberg
  • 2009: Urania, Berlin, Bistro Brenner, Stuttgart, and UTZ, Berlin
  • 2010: Art Night, Leonberg
  • 2011: Bethesda Clinic, Stuttgart
  • 2013–2014: Alt Heiligensee Community Center, Berlin-Heiligensee
  • 2013: Leonberg District Hospital
  • 2014: Herrenberg District Hospital
  • 2015: Humboldt Clinic, Berlin

Publications

Manual

  • Hellmuth Fischer and Sigfrid Gahse: Manual of automatic data processing, Verlag Moderne Industrie, Munich, 1970

Book series editor and author

Books

  • Sigfrid Gahse: The new techniques of financial planning with electronic data processing, Verlag Moderne Industrie, Munich, 1971
  • Sigfrid Gahse: Mathematical prediction methods and their application, Verlag Moderne Industrie, Munich, 1971

brochures

  • Sigfrid Gahse: Two mathematical models of investment control with an IBM data processing system, IBM specialist library Form 81 522, May 1966
  • Sigfrid Gahse: Optimal order quantities, IBM Specialized Library Form 81 533, April 1967
  • Sigfrid Gahse: Dynamic financial planning with DYPOL, IBM specialist library Form 81 554, March 1968
  • Sigfrid Gahse: A system of forecasting methods, IBM Specialized Library Form 81 564, February 1969
  • Sigfrid Gahse: Long-term forecasting methods with graphic and numerical methods, IBM Specialized Library Form 81 563, March 1969

Web links

Individual evidence

  • Inge Nowak: A Methuselah of the software industry goes. Stuttgarter Zeitung, February 25, 2003, page 10
  • (Igl): A pioneer in the software industry, Leonberger Kreiszeitung, February 28, 2008, page II
  • (cro / kl): He grew up in the age of the punched card, Stuttgarter Wochen-Blatt, March 20, 2003, page 6
  • Christian Ortmann and Ingo Siebeking: Heuristics for lot size planning in PPS systems ( https://www.wiwi.uni-osnabrueck.de/ ), page 13, footnote 61
personal data
SURNAME Gahse, Sigfrid
BRIEF DESCRIPTION German entrepreneur, scientist and artist
DATE OF BIRTH February 28, 1938
PLACE OF BIRTH Erfurt