https://renedekkers.nl/tags/domain-driven-design/Recent content in Domain-Driven-Design on René Dekkershttps://renedekkers.nl/images/og-default.pnghttps://renedekkers.nl/images/og-default.pngHugo -- 0.155.2enSat, 25 Jul 2026 13:33:06 +0200https://renedekkers.nl/posts/functional-core-imperative-shell/Tue, 14 Jul 2026 09:00:00 +0200https://renedekkers.nl/posts/functional-core-imperative-shell/A method can be short, readable and still painful to test, because it decides and performs effects in one breath. Pulling the two apart, in C#.https://renedekkers.nl/posts/make-illegal-states-unrepresentable/Mon, 06 Jul 2026 08:30:00 +0200https://renedekkers.nl/posts/make-illegal-states-unrepresentable/A class with a status enum and three nullable fields can represent dozens of states, most of them nonsense. Redesigning the type so they cannot exist.