Breaking a monolith to microservices generally involves rewriting the monolith piecemeal and gradually replaced in production. This is opposed to a Big Bang rew

Breaking a monolith to microservices generally involves rewriting the monolith piecemeal and gradually replaced in production. This is opposed to a Big Bang rewrite, where the entire product is set to be replaced with something written from scratch. The Netscape 5 rewrite is the classic example given by Joel Spolsky, as the first (and so far only) "Thing you should never do"[1]. On the other, extracting parts of the monolith, rewriting them and replacing them piecemeal is essentially a distributed version of refactoring, which is generally agreed to be the right way to handle legacy code. [1] https://www.joelonsoftware.com/2000/04/06/things-you-should-never-do-part-i/ https://www.joelonsoftware.com/2000/04/06/things-you-should-...