 An EAM includes an asset registry (inventory of assets and their attributes) combined with a computerized maintenance management system (CMMS) and other modules (such as inventory or materials management).Assets that are geographically distributed, interconnected or networked, are often also represented through the use of geographic information systems (GIS).GIS-centric asset registry standardizes data and improves interoperability, providing users the capability to reuse, coordinate, and share information in an efficient and effective manner.