David Harel

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David Harel
David Harel (FLoC 2006).jpg
David Harel (right) with Carl Hewitt at FLoC 2006
Born (1950-04-12) 12 April 1950 (age 67)
London, England
Nationality Israeli and British
Fields Computer Science
Institutions Weizmann Institute
Notable awards

David Harel (Hebrew: דוד הראל‎‎; born 12 April 1950) is a computer scientist at the Weizmann Institute of Science in Israel, and holds the William Sussman Professorial Chair of Mathematics. Born in London, England, he was Dean of the Faculty of Mathematics and Computer Science at the institute for seven years. He currently also serves as Vice President of the Israel Academy of Sciences and Humanities.


Harel is best known for his work on dynamic logic, computability, database theory, software engineering and modeling biological systems. In the 1980s he invented the graphical language of Statecharts for specifying and programming reactive systems, which has been adopted as part of the UML standard. Since the late 1990s he has concentrated on a scenario-based approach to programming such systems, launched by his co-invention (with W. Damm) of Live Sequence Charts. He has published expository accounts of computer science, such as his award winning 1987 book "Algorithmics: The Spirit of Computing" and his 2000 book "Computers Ltd.: What They Really Can’t do", and has presented series on computer science for Israeli radio and television. He has also worked on other diverse topics, such as graph layout, computer science education and the analysis and communication of odors.

Harel completed his Ph.D. at MIT between 1976 and 1978. In 1987, he co-founded the software company I-Logix, which in 2006 became part of IBM.

He has advocated building a full computer model of the Caenorhabditis elegans nematode, which was the first multicellular organism to have its genome completely sequenced. The eventual completeness of such a model depends on his updated version of the Turing test.

He is a fellow of the ACM, the IEEE, the AAAS, and EATCS.

Harel is active in several peace and human rights organizations in Israel.

Awards and honors[edit]

See also[edit]


  1. ^ a b c David Harel – Award Winner, ACM, retrieved 2015-01-02.
  2. ^ "Israel Prize Official Site (in Hebrew) – Recipient's C.V.". 
  3. ^ "Israel Prize Official Site (in Hebrew) – Judges' Rationale for Grant to Recipient". 
  4. ^ Member profile, Academia Europaea, retrieved 2015-01-02.
  5. ^ Member profile, Israel Academy of Sciences and Humanities.
  6. ^ Member profile, National Academy of Engineering, retrieved 2015-01-02.
  7. ^ Newly elected members, American Academy of Arts and Sciences, April 2014, retrieved 2015-01-02.

External links[edit]