In theory microservice is cool. In practice, it's not. Microservice and modularity is orthogonal, it's not the same. Modularity is related to business concept

In theory microservice is cool. In practice, it's not. Microservice and modularity is orthogonal, it's not the same. Modularity is related to business concept, microservice is related to infrastructure concept. For example, i could have a module A which is deployed into microservide A1 and A2. In this case, A is almost abstract concept. And of course, i could deploy all modules A, B, C using 1 big service (monothlic). Moreover, i could share one microservice X for all modules. All confusion from microservice, is made from the misconception that microservice = module. Worse, most of "expert advice" which i've learnt actually relate Domain Driven Design to Microservice. They're not related, again. Microservice to me, is to scale. Scale the infrastructure. Scale the team (management concept).