Standalone repository. A repository that functions individually, unrelated and unconnected to other repositories.

Global repository. (PowerCenter only.) The centralized repository in a domain, a group of connected repositories. Each domain can contain one global repository. The global repository can contain common objects to be shared throughout the domain through global shortcuts.

Local repository. (PowerCenter only.) A repository within a domain that is not the global repository. Each local repository in the domain can connect to the global repository and use objects in its shared folders.

Power Center repository is used to store informatica's meta data .

Information such as mapping name,location,target definitions,source definitions,transformation and flow is stored as meta data in the repository.