The Information Services Warehouse provides a central, reliable, fault tolerant, and scalable repository of discoverable resource information. This component is specifically designed to support the discovery use case and often contains copies of the authoritative resource information produced or managed by other components. The Warehouse REST API implements RESTful interfaces to update and search CI resource information and enables the “pull” method for discovery. Information Service Routers move/route information between publish/subscribe
components and update/search components. This enables published information to be discoverable thru search interfaces, and updated information to be forwarded to subscribers.