components are - same database - same runtime - same deployment - same repository That said, I don't think this is an either/or. It's a spectrum. you can have

components are - same database - same runtime - same deployment - same repository That said, I don't think this is an either/or. It's a spectrum. you can have components within the same runtime and repository that have separate databases, or components that are using the same database but live in separate repos, etc. From one monolithic app towards fully separated microservices is a spectrum, and I think developers should be enabled to move freely around that spectrum.