Page 266 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

1 Scope

This Recommendation identifies requirements for cloud infrastructure to support cloud services.
The scope of this Recommendation includes:
– an overview of cloud computing infrastructure;
– requirements for processing resources;
– requirements for networking resources;

– requirements for storage resources;
– requirements for resource abstraction and control.

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.3500] Recommendation ITU-T Y.3500 (2014) | ISO/IEC 17788:2014, Information
technology – Cloud computing – Overview and vocabulary.

[ITU-T Y.3501] Recommendation ITU-T Y.3501 (2013), Cloud computing framework and high-level
requirements.

[ITU-T Y.3502] Recommendation ITU-T Y.3502 (2014) | ISO/IEC 17789:2014, Information
technology – Cloud computing – Reference architecture.

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.

NOTE – Examples of resources include servers, operating systems, networks, software, applications, and
storage equipment.

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.

NOTE – A business relationship does not necessarily imply financial agreements.
3.1.4 cloud service provider [ITU-T Y.3500]: Party which makes cloud services available.
3.1.5 emergency telecommunications (ET) [b-ITU-T Y.2205]: ET means any emergency related service
that requires special handling from the NGN relative to other services. This includes government authorized
emergency services and public safety services.
3.1.6 emergency telecommunications service (ETS) [b-ITU-T E.107]: A national service providing priority
telecommunications to ETS authorized users in times of disaster and emergencies.

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