Enterprise Architecture (EA) can be used as an effective change management agent by providing a consistent description of the business, including processes, services, technology, risks and other important elements. This centralized description in an "Enterprise Repository" enables rapid impact analysis of potential changes. It increases efficiency by sharing best practices, reduces risks through impact assessment, and expedites project management by centralizing important information. An EA approach supports change initiatives through visibility and understanding of the entire organization and how different elements are related.