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Ivar Hjalmar Jacobson (born 1939) is a Swedish computer scientist and software engineer, known as major contributor to UML, Objectory, Rational Unified Process (RUP), aspect-oriented software development and Essence. == Biography == Ivar Jacobson was born in Ystad, Sweden on 2 September 1939. He received his Master of Electrical Engineering degree at Chalmers Institute of Technology in Gothenburg in 1962 and a Ph.D. at the Royal Institute of Technology in Stockholm in 1985 on a thesis on Language Constructs for Large Real Time Systems. After university, Jacobson worked at Ericsson until April 1987, when he started Objective Systems. A majority stake of the company was acquired by Ericsson in 1991, and the company was renamed Objectory AB. Jacobson developed the software method OOSE published 1992, which matured to become the software process Objectory. In October 1995 Ericsson divested Objectory to Rational Software〔(DBMS Interview - October 1996 )〕 and Jacobson started working with Grady Booch and James Rumbaugh, known collectively as the Three Amigos. Rational was bought by IBM in 2003 and Jacobson decided to quit, but he stayed on until May 2004 as an executive technical consultant. In mid-2003 Jacobson formed Ivar Jacobson International (IJI) 〔()〕 which operates across three continents with offices in the UK, the US, Sweden, Switzerland, China, and Singapore. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ivar Jacobson」の詳細全文を読む スポンサード リンク
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