Page 836 - Cloud computing: From paradigm to operation

5 Intercloud and interoperability

7.3.4 Inter-cloud service selection

The inter-cloud service selection function allows a primary CSP to match and identify a specified inter-cloud
service.

This function includes the following.
– Inter-cloud service matching. This allows a primary CSP to find out about available inter-cloud
services by matching inter-cloud service SLAs and inter-cloud service monitoring information.
– Inter-cloud service identification. This allows for selecting of appropriate inter-cloud services based
on the matching result. The identification of the inter-cloud service selected, as the
acknowledgement of the inter-cloud selection, is used to reserve an inter-cloud service by a
primary CSP.

7.3.5 Inter-cloud service reservation

The inter-cloud service reservation function allows a primary CSP to create, update and release reserved
inter-cloud service and its attached resource.

This function includes the following.
– Inter-cloud reserved service creation. This allows a primary CSP to reserve an inter-cloud service and
its attached resources from other peer CSPs. The acknowledgement is sent between peer CSPs as
confirmation of the creation.
– Inter-cloud reserved service updated. This allows a primary CSP to update the inter-cloud reserved
service and its attached resources from other peer CSPs. The acknowledgement is sent between
peer CSPs as confirmation of the update.
– Inter-cloud reserved service released. This allows a primary CSP to release an inter-cloud reserved
service and its attached resources from other peer CSPs. The acknowledgement is sent between
peer CSPs as confirmation of the release.
7.3.6 Inter-cloud service release

The inter-cloud service release function allows for releasing of a reserved and allocated inter-cloud service
and return of its attached resources to peer CSPs.

This function includes the following.
– Inter-cloud reserved service release. This allows for releasing of an issued inter-cloud service
reservation and return of its attached resources to peer CSPs.
– Inter-cloud allocated service release. This allows for de-allocating and terminating of the allocated
inter-cloud service and return of its attached resources to peer CSPs.

7.3.7 Inter-cloud capabilities adaptation
The inter-cloud capabilities adaptation function allows for adapting inter-cloud service API from peer CSPs.

This function includes the following.
– Inter-cloud service API adaptation. This allows for adapting of an inter-cloud service API from peer
CSPs. The format of an inter-cloud service API provided by peer CSPs is transformed into a primary
CSP's own API by utilizing inter-cloud capabilities adaptation.

7.4 Security systems

7.4.1 Authentication and identity management
The authentication and identity management function provides authentication of and identities for peer
CSPs.
This function includes the following.
– Federated identity management. This allows for using of federated identity management to permit
peer CSPs to employ the same identity and credentials to access inter-cloud services.

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