Page 833 - Cloud computing: From paradigm to operation

Intercloud and interoperability 5

7.2 Operational support systems

7.2.1 Service catalogue
The service catalogue function includes service catalogue synchronization and life-cycle management with
peer CSPs.
This function includes the following.
– Service catalogue synchronization. This allows for periodically or on-demand exchange of service
catalogue information for inter-cloud services.
– Service catalogue lifecycle management. This allows managing, e.g., creating, modifying, deleting
and querying content of the service catalogue of the peer CSP for inter-cloud services. Service
catalogue life-cycle management includes publishing catalogue content information allowing peer
CSPs to consult and select inter-cloud services.

7.2.2 Service provisioning
The provisioning function allows for the provisioning of inter-cloud services provided by peer CSPs.
This function includes the following.

– Service deployment. This allows creating inter-cloud service instances based on the inter-cloud
service template defined in the service catalogue, and delivery of inter-cloud service instances
deployment requests to related peer CSPs.
– Service configuration and lifecycle management. This allows accessing and configuring deployed
inter-cloud service instances as well as managing the lifecycle of deployed inter-cloud service
instances.

NOTE – Service lifecycle management includes inter-cloud service creation, scaling, update and termination. For more
details about end-to-end cloud service lifecycle management, refer to [ITU-T Y.3522].

7.2.3 Monitoring and reporting
The monitoring and reporting functions monitor inter-cloud services and provide monitoring reports to peer
CSPs.
This function includes the following.
– Service monitoring. This allows for providing inter-cloud service metrics to peer CSPs periodically or
on a request basis.
NOTE – Inter-cloud service metrics are tracked for the purpose of meeting the inter-cloud service availability
contributing to SLAs.
– Monitoring information exchanging and reporting. This allows for exchanging, recording and
reporting of inter-cloud services monitoring information for peer CSPs.

7.2.4 Service policy management
The service policy management function includes lifecycle management and provisioning policy negotiation.

This function includes the following.
– Service policy lifecycle management. This allows for defining, modifying, storing and retrieving of
inter-cloud service policies.

NOTE – Inter-cloud service policy refers to an inter-cloud SLA, disaster recovery mechanism, auto-scale, inter-
cloud service switchover and switchback.
– Service provisioning policy negotiation. This allows for inter-cloud service provisioning policy
comparison, transformation and confirmation between peer CSPs.
7.2.5 Service automation

The service automation function delivers inter-cloud services automatically, including the management and
execution of service templates and the orchestration of services.

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