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The SDC manages the content of a catalog, and logical assemblies of selected catalog items --as needed-- to completely define how and when VNFs are realized in a target environment. A complete virtual assembly of specific catalog items, together with selected workflows and instance configuration data, completely defines how the deployment, activation, and life-cycle management of VNFs are accomplished. Selected sub-assemblies may also be represented in the catalog and may be combined with other catalog items, including other sub-assemblies.
In the context of a catalog containing TOSCA nodes that are assembled to form a TOSCA blueprint within the SDC, it is expected that such nodes convey (as properties) all of the workflows and/or workflow fragments) needed to realize the node in some specific target environment. In this way, any assembly of such nodes (defined in a blueprint) can be used to define the end-to-end workflow needed to realize the VNF associated with the TOSCA blueprint.
SDC manages four levels of assets:
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