A remarkable group photo






On 13-15 September 1999 a symposium took place in St Catherine College in Oxford,  in honor of Tony Hoare’s “retirement” from Oxford (the word is in quotes because he has had several further productive careers since). The organizers were Jim Woodcock, Bill Roscoe and Jim Davies. The proceedings are available as Millenial Perspectives in Computer … Read more




Niklaus Wirth and the Importance of Being Simple






[This is a verbatim copy of a post in the Communications of the ACM blog, 9 January 2024.] I am still in shock from the unexpected death of Niklaus Wirth eight days ago. If you allow a personal note (not the last one in this article): January 11, two days from now, was inscribed in … Read more




New article: scenarios versus OO requirements






Maria Naumcheva, Sophie Ebersold, Alexandr Naumchev, Jean-Michel Bruel, Florian Galinier and Bertrand Meyer: Object-Oriented Requirements: a Unified Framework for Specifications, Scenarios and Tests, in JOT (Journal of Object Technology), vol. 22, no. 1, pages 1:1-19, 2023. Available here with link to PDF  (the journal is open-access). From the abstract: A paradox of requirements specifications as … Read more




Statement Considered Harmful






I harbor no illusion about the effectiveness of airing this particular pet peeve; complaining about it has about the same chance of success as protesting against split infinitives or music in restaurants. Still, it is worth mentioning that the widespread use of the word “statement” to denote a programming language element, such as an assignment, that … Read more




“Object Success” now available






A full, free online version of Object Success (1995)   I am continuing the process of releasing some of my earlier books. Already available: Introduction to the Theory of Programming Languages (see here) and Object-Oriented Software Construction, 2nd edition (see here). The latest addition is Object Success, a book that introduced object technology to managers … Read more




The legacy of Barry Boehm






August of last year brought the sad news of Barry Boehm’s passing away on August 20. If software engineering deserves at all to be called engineering today, it is in no small part thanks to him. “Engineer” is what Boehm was, even though his doctorate and other degrees were all in mathematics. He looked the … Read more




Logical beats sequential






Often,  “we do this and then we do that” is just a lazy way of stating “to do that, we must have achieved this.” The second form is more general than the first, since there may be many things you can “do” to achieve a certain condition. The extra generality is welcome for software requirements, … Read more




New paper: optimization of test cases generated from failed proofs






Li Huang (PhD student at SIT) will be presenting at an ISSRE workshop the paper Improving Counterexample Quality from Failed Program Verification, written with Manuel Oriol and me. One can find the text on arXiv here. (I will update this reference with the official publication link when I have it.) The result being presented is … Read more




New book: the Requirements Handbook






I am happy to announce the publication of the Handbook of Requirements and Business Analysis (Springer, 2022). It is the result of many years of thinking about requirements and how to do them right, taking advantage of modern principles of software engineering. While programming, languages, design techniques, process models and other software engineering disciplines have … Read more