This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous. Find sources: "Ralph-Johan Back" – news · newspapers · books · scholar · JSTOR (January 2013) (Learn how and when to remove this message)

Ralph-Johan Back is a Finnish computer scientist.^[1] Back originated the refinement calculus, an important approach to the formal development of programs using stepwise refinement, in his 1978 PhD thesis at the University of Helsinki, On the Correctness of Refinement Steps in Program Development. He has undertaken much subsequent research in this area. He has held positions at CWI Amsterdam, the Academy of Finland and the University of Tampere.

Since 1983, he has been Professor of Computer Science at the Åbo Akademi University in Turku. For 2002–2007, he was an Academy Professor at the Academy of Finland. He is Director of CREST (Center for Reliable Software Technology) at Åbo Akademi.^{[citation needed]}

Back is a member of Academia Europaea.^[1]

• Ralph-Johan Back home page
• Ralph-Johan Back at DBLP Bibliography Server

This article about a Finnish scientist is a stub. You can help Wikipedia by expanding it.

• v
• t
• e