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A&AI is continually updated in real-time as changes are made within the cloud. AAI A&AI is metadata-driven, allowing new inventory item types to be added dynamically and quickly with Service Design and Creation (SDC) catalog definitions, eliminating the need for lengthy development cycles.
The A&AI subsystem uses graph data technology to store relationships between inventory items. Graph traversals can then be used to identify chains of dependencies between items. Relationships captured by AAI include “top to bottom” relationships such as those defined in SDC when products are composed of services, and services are composed of resources. It also includes “side to side” relationships such as end-to-end connectivity of virtualized functions to form service chains. AAI also keeps track of the span of control of each controller, and is queried by MSO and placement functions to identify which controller to invoke to perform a given operation.
AAI data views can be used by homing logic during real-time service delivery, root cause analysis of problems, impact analysis, capacity management, software license management and many other functions.
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Active and Available Inventory (A&AI) is the ECOMP component that provides real-time views of D2 Resources, Services, Products, and Customer Subscriptions for D2 services. Figure 12 provides a functional view of AAI. The views provided by Active and Available Inventory relate data managed by multiple ECOMP, BSS, OSS, and network applications to form a “top to bottom” view ranging from the Products customers buy to the Services and Resources used to compose the Products. Active and Available Inventory not only forms a registry of Products, Services, and Resources, it also maintains up-to-date views of the relationships between these inventory items across their lifecycles. To deliver the vision of the dynamism of D2, Active and Available Inventory will manage these multi-dimensional relationships in real-time.
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