Bertrand Meyer's technology+ blog
Software engineering, programming methodology, languages, verification, general technology, publication culture, and more
Bertrand Meyer: Obituary for Niklaus Wirth, in Formal Aspects of Computing, volume 37, issue 2, pages 1-11, published 3 March 2025, available here (publisher’s site). Shortly after Niklaus Wirth — Turing Award winner for his many seminal contributions including Pascal, Algol W, Modula, virtual machines, Lilith/Ceres, railway diagrams, PL/360, seminal textbooks… — passed away last … Read more
[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
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
Short version: the full text of my Introduction to the Theory of Programming Languages book (second printing, 1991) is now available. This page has more details including the table of chapters, and a link to the PDF (3.3MB, 448 + xvi pages). The book is a survey of methods for language description, particularly semantics (operational, … Read more
I have released for general usage the chapter on axiomatic semantics of my book Introduction to the Theory of Programming Languages. It’s old but I think it is still a good introduction to the topic. It explains: The notion of theory (with a nice — I think — example borrowed from an article by Luca … Read more
My book Object-Oriented Software Construction, 2nd edition (see the Wikipedia page) has become hard to get. There are various copies floating around the Web but they often use bad typography (wrong colors) and are unauthorized. In response to numerous requests and in anticipation of the third edition I have been able to make it available … Read more
There is a new paper out, several years in the making: The Role of Formalism in System Requirements Jean-Michel Bruel, Sophie Ebersold, Florian Galinier, Manuel Mazzara, Alexander Naumchev, Bertrand Meyer Computing Surveys (ACM), vol. 54, no. 5, June 2021, pages 1-36 DOI: https://doi.org/10.1145/3448975 Preprint available here. The authors are from the Schaffhausen Institute of Technology … Read more
This Wednesday (still “tomorrow” as I am writing this), 10 March 2021, I am giving a talk on “The Beauty of Software” on the occasion of the graduation ceremony of the first students of the Schaffhausen Institute of Technology. The event starts at 17 Schaffhausen/Zurich/Paris etc. time (11 AM New York, 8 AM San Francisco) … Read more
Science progresses through people taking advantage of others’ insights and inventions. One of the conditions that makes the game possible is that you acknowledge what you take. For the originator, it is rewarding to see one’s ideas reused, but frustrating when that happens without acknowledgment, especially when you are yourself punctilious about citing your own … Read more
I have been conducting interesting conversations with a two-something child who has not quite mastered the speaker-dependent [1] personal pronouns. He says things like “Where is your mom?”, when he actually means to ask about his mother, not mine; from hearing people tell him things like “your mom is coming”, he is clearly taking “your … Read more