Bertrand Meyer's technology+ blog
Software engineering, programming methodology, languages, verification, general technology, publication culture, and more
Microsoft Office tools offer features for (1) spelling correction and (2) multi-language support. They are not very good at working together, another example of the perils of feature interaction. Spelling correction will by default when misspelled, but in the case of common misspellings known to the tools it will simply correct words without bothering the … Read more
One of the most delicate aspects of design is feature interaction. As users, we suffer daily from systems offering features that individually make sense but clash with each other. In my agile book [1] I explained in detail, building on the work of Pamela Zave, why this very problem makes one of the key ideas … Read more
(First published on the CACM blog.) A book by Laurent Bossavit [1] lists what he calls “leprechauns” of software engineering: pearls of conventional wisdom that do not necessarily survive objective analysis. Whether or not we agree with him on every specific example, his insights are fruitful and the general approach commendable: it is healthy to … Read more
The 2016 session of the LASER summer school, now in its 13th edition, has just been announced. The theme is new for the school, and timely: software for robotics. Below is the announcement. School site: here The 2016 LASER summer school will be devoted to Software for Robotics. It takes place from 10 to 18 … Read more
A third ACM webinar this year (after two on agile methods): I will be providing a general introduction to Design by Contract. The date is this coming Thursday, September 17, and the time is noon New York (18 Paris/Zurich, 17 London, 9 Los Angeles, see here for hours elsewhere). Please tune in! The event is … Read more
Most people in technology, trade, research or education work in an international environment and need to use a foreign language which they learned at some earlier stage [1]. It is striking to see how awfully most of us perform. International conferences are a particular pain; many speakers are impossible to understand. You just want to … Read more
One of the most improvable characteristics of scientific papers is the graphical presentation of numerical data. It is sad to see that thirty years after Tufte published the first edition of his masterpiece [1] many authors are still including grossly inaccurate graphics. Sadder still when the authors are professional graphists, who should know better. … Read more
Last week at the the CSEE&T conference in Klagenfurt (the conference page is here, I gave a keynote), a panel discussed how universities should prepare students for software engineering. Barry Boehm, one of the panelists, stated the following principle, which afterwards he said he had learned from Simon Ramo, co-founder of TRW. In hiring … Read more
Recently I mentioned the first law of branching (see earlier article) to Walter Tichy, famed creator of RCS, the system that established modern configuration management. He replied with the following anecdote, which is worth reproducing in its entirety (in his own words): I started work on RCS in 1980, because I needed an alternative for … Read more