Page 58 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

1 Scope
This Recommendation | International Standard specifies the cloud computing reference architecture (CCRA).
The reference architecture includes the cloud computing roles, cloud computing activities, and the cloud
computing functional components and their relationships.

2 Normative references

The following Recommendations and International Standards contain provisions which, through reference in
this text, constitute provisions of this Recommendation | International Standard. At the time of publication,
the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to
agreements based on this Recommendation | International Standard are encouraged to investigate the
possibility of applying the most recent edition of the Recommendations and Standards listed below.
Members of IEC and ISO maintain registers of currently valid International Standards. The
Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T
Recommendations.

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

2.2 Additional references
– ISO/IEC 29100:2011, Information technology – Security techniques – Privacy framework.

3 Definitions
For the purposes of this Recommendation | International Standard, the terms and definitions in Rec.
ITU-T Y.3500 | ISO/IEC 17788 and the following definitions apply.

3.1 Terms defined elsewhere

The following term is defined in ISO/IEC/IEEE 42010:
3.1.1 architecture: Fundamental concepts or properties of a system in its environment embodied in its
elements, relationships and in the principles of its design and evolution.
The following term is defined in ISO/IEC 29100:
3.1.2 personally identifiable information (PII): Any information that (a) can be used to identify the PII
principal to whom such information relates, or (b) is or might be directly or indirectly linked to a PII principal.
NOTE – To determine whether a PII principal is identifiable, account should be taken of all the means which can reasonably be
used by the privacy stakeholder holding the data, or by any other party, to identify that natural person.
3.2 Terms defined in this Recommendation | International Standard

This Recommendation | International Standard defines the following terms:
3.2.1 activity: A specified pursuit or set of tasks.

3.2.2 cloud service product: A cloud service, allied to the set of business terms under which the cloud
service is offered.
NOTE – Business terms can include pricing, rating and service levels.
3.2.3 functional component: A functional building block needed to engage in an activity (clause 3.2.1),
backed by an implementation.

3.2.4 peer cloud service: A cloud service of one cloud service provider which is used as part of a cloud
service of one or more other cloud service providers.

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