Page 184 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

1 Scope

This Recommendation provides the functional requirements of the physical machine for cloud computing
based on cloud computing infrastructure requirements presented in [ITU-T Y.3510]. This Recommendation
addresses the following:
– Overview of the physical machine;
– Functional requirements of the physical machine. The functional requirements provided in this
Recommendation are derived from use cases.
NOTE 1 – This Recommendation does not advocate, imply, or assume the use of any specific set or sets of technical
specifications. Examples of such sets of technical specifications can be found in Appendix I.
NOTE 2 – This Recommendation addresses a set of use cases which are included in Appendix II.

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 Y.3100] Recommendation ITU-T Y.3100 (2017), Terms and definitions for IMT-2020 network.
[ITU-T Y.3500] Recommendation ITU-T Y.3500 (2014) | ISO/IEC 17788:2014, Information
technology – Cloud computing – Overview and vocabulary.
[ITU-T Y.3510] Recommendation ITU-T Y.3510 (2016), Cloud computing infrastructure requirements.

[ITU-T Y.3521] Recommendation ITU-T Y.3521/M.3070 (2016), Overview of end-to-end cloud
computing management.

[ITU-T X.1601] Recommendation ITU-T X.1601 (2015), Security framework for cloud computing.

3 Definitions

3.1 Terms defined elsewhere
This Recommendation uses the following terms defined elsewhere:

3.1.1 cloud computing [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.

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

3.1.3 cloud service customer [ITU-T Y.3500]: Party which is in a business relationship for the purpose of
using cloud services.
3.1.4 cloud service provider [ITU-T Y.3500]: Party which makes cloud services available.
3.1.5 physical resource [ITU-T Y.3100]: A physical asset for computation, storage and/or networking.

NOTE – Components, systems and equipment can be regarded as physical resources

3.2 Terms defined in this Recommendation
This Recommendation defines the following term:
3.2.1 physical machine: A type of computing machine providing physical resources.
NOTE – A computing machine provides allocation and scheduling of processing resources. Types of computing machine
are physical or virtual [ITU-T Y.3510].

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