Diploma in mathematics, University Bonn, Germany, 1970. Doctor Natural Sciences, University Dortmund, Germany, 1979.
Science employee Society Mathematics and Data Processing, Birlinghofen, Germany, 1970. Assistant professor University Bonn, 1971-1972. Assistant professor computer science University Dortmund, since 1972.
Science employee (on leave from University Dortmund) mbp, software company, 1981-1982. Professor University Paderborn, Germany. 1986-1987.
Member German Society for Computer Science, German Public Forum Computer Scientists for Peace and Social Responsibility.
Married Bärbel Annemarie Weyer, July 9, 1970. Children: Sonja, Inga.