Post #1474846

Recently I came across a discussion on LinkedIn, where the creator claimed that many successful projects do not use TDD. This created a riot, with many people pointing out that the mentioned projects had tests, so that the claim was invalid, completely ignoring the fact that having tests and following TDD are not the same thing. This was pointed out amongst other by Brian O'Reilly. What caught my interest is that Brian develop an architecture method/idiom employing "Residuality Theory". He published a leanpup book about it (https://leanpub.com/residuality) and others blogged about it. E.g. https://ericnormand.substack.com/p/residuality-theory I feel quite attracted to the whole thing: on the one hand there is gut feeling involved, and then there are also steps to evaluate this gut feeling. What is your take? Have/had any experiences with the concepts?