dependencies). Classes ModuleId is used as the identifier of module, without considering its version. It's basically an organization and module name couple. ModuleRevisionId is used as the identifier of a module in a particular version or version constraint. It is composed of a ModuleId, a revision, and optionally a branch and extra attributes. ArtifactId identifies an artifact without considering its version. It's basically a ModuleId and an artifact name, type and extension, plus optional extra attributes....