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Four Diseases

How a developer can tell if the system is sick just by taking a look at the input and the output? If you’d like to know that (plus you like standup comedy), come and see! The treatment is safe ;-)

One approach to get familiar with a system is a long and intense reading the manual (and to run an eye over the source code sometimes). Another approach is to take a deep dive into the data model (often in the DB) and to surf the user interface. Both are natural ends of the system, the legendary Input and Output. By examining these ends one can check if there’s good digestion or if guts are rotten. Careful examination can confirm “common DDDosis”, “malignant stringosis”, “regex diarrhoea” or “not-made-here syndrome”. Unfortunately, sometimes developers get infected in their prenatal life (meaning: at their university). Let me invite you to treatment. A laxative one. (That is: a sequel of “Passwords. Do you keep them safe?")

This talk (in various formats) has been presented at SpreadIT, CoreDump (a.k.a. SegFault), GDG DevFest Toulouse, JavaDay Lviv, Greenfield Conf, 4Developers, Wrocław JUG, BoilingFrogs and others.

This talk has been selected the best Architecture talk of 4Developers 2019 and SpreadIT 2018.

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