Page 522 - Cloud computing: From paradigm to operation

2 Cloud Computing management

1 Scope

This Recommendation provides the metadata framework for the closed-loop automation lifecycle
management of Network as a Service (NaaS) service, specifically in the environments of development and
operations (DevOps) and continuous integration/continuous delivery (CI/CD). This Recommendation covers
the following aspects:
– general description of metadata for NaaS service lifecycle management;
– metadata in NaaS service;
– metadata framework for NaaS service lifecycle management;

– NaaS service operational policy framework.
This Recommendation also provides Appendix I describing:
– metadata applicability in NaaS service lifecycle management.
NOTE 1 – The objective in defining a metadata framework of NaaS service lifecycle management is not to invent new
metadata, but rather to make the existing metadata interoperable and integrated in the closed-loop automation
management of NaaS service, especially in the environments of DevOps and CI/CD.
NOTE 2 – "Metadata" in this Recommendation refers to NaaS service data model, NaaS service operational policy data
model and NaaS resource data model.

2 References
The following ITU-T Recommendations and other references contain provisions which, through reference in
this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated
were valid. All Recommendations and other references are subject to revision; users of this Recommendation
are therefore encouraged to investigate the possibility of applying the most recent edition of the
Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is
regularly published. The reference to a document within this Recommendation does not give it, as a stand-
alone document, the status of a Recommendation.

[ITU-T X.1601] Recommendation ITU-T X.1601 (2015), Security framework for cloud computing.
[ITU-T Y.3512] Recommendation ITU-T Y.3512 (2014), Cloud computing – Functional requirements of
Network as a Service.
[ITU-T Y.3515] Recommendation ITU-T Y.3515 (2017), Cloud computing – Functional architecture of
Network as a Service.
[ITU-T Y.3522] Recommendation ITU-T Y.3522 (2016), End-to-end cloud service lifecycle
management requirements.

3 Definitions

3.1 Terms defined elsewhere

This Recommendation uses the following terms defined elsewhere:
3.1.1 cloud computing [b-ITU-T Y.3500]: Paradigm for enabling network access to a scalable and elastic
pool of shareable physical or virtual resources with self-service provisioning and administration on-demand.
NOTE – Examples of resources include servers, operating systems, networks, software, applications and storage
equipment.

3.1.2 cloud service [b-ITU-T Y.3500]: One or more capabilities offered via cloud computing invoked using
a defined interface.

3.1.3 cloud service customer [b-ITU-T Y.3500]: Party which is in a business relationship for the purpose of
using cloud services.

NOTE – A business relationship does not necessarily imply financial agreements.

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