Realtime views of the managed resources and services and their relationships
The relivance relevance of the managed resources and services to the ONAP components.
It is a registry of the active, available and assigned assets.
It maintains a multidimenstional relationship amonst amongst the managed services and resoucesresources.

2. API definitions

AAI provides the following interfaces:

Interface Name

Interface Definition

Interface Capabilities

Version

Status

Consumed Models

Inventory Service Interface.

An interface to create, update, retrieve, query, delete the service, resources and relationship inventory information for:

Cloud infrastructure (including cloud infrastructure regions and availability zones, cloud infrastructure resources such as servers, storage, VLANs, cloud network technologies,...)
Paths and connectors
Business Customers and busines business customer relationship to managed assets
Service Instances (including the relationship to used resources)
Resource instances (including allotted resources) (virtual and physical, including VNFs, PNFs, Switches, VNF modules)
External systems (systems that ONAP connects to)
Images
Networks
Infrastructure tenants
Relationships
Interfaces
IP addresses
Configurations
Licenses
Site resources

AAI also provides Inventory History information

v16

AAI XSD

AAIE AAIE-2

AAI Graphical User Interfaces

Provides the capability to view the inventory

...

A more detailed figure and description of the component.

<< For later inclusion >>FFS

4. known system limitations

Multithreaded concurrent operations on the same objects can cause duplicates in the graph - we have implemented stickiness in the haproxy that sits between AAI and clients to keep a client bound to the same node which can mitigate this, but we do not force locking on updates which means that malicious or careless clients can cause duplicates in the graph. We provide cleanup utilities for data grooming, but we recommend that clients are careful not to send multiple requests on the same object within microseconds of one another.
Operators should pay special attention to giving cassandra enough space, because we have known issues where things go pretty bad (like unhelpful or just wrong error messages) when the disks fill up on the cassandra cluster nodes.

AAI uses the following models:

...