Federated architecture is a common enterprise architectural pattern. There are many justifications for utilizing federated enterprise architecture. For example, federated architecture could have resulted from merger and acquisition activities where the acquired divisions decided to stay on existing platforms. Or, it may be used for regulatory compliance in situations where each department must maintain its own systems. The reasons may vary, but the impact on a data governance implementation is the same: mainly increased complexity in integrating the data governance system with the rest of the enterprise platform.