Page 66 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

Functional components of the multi-layer functions are described in clause 9.2.5.

7.4 Relationship between the user view and the functional view

Figure 7-5 illustrates how the user view provides the set of cloud computing activities that are represented
within the functional view (and realized using the technologies of the implementation view).

Role Multi-layer
Functional Layer functions
component
Activity
Functional Layer
component Functional
Activity component
Functional Layer
component

User view Functional view
Y.3502(14)_F7-5

Figure 7-5 – From user view to functional view

Further details on the relationship between the user view and functional view can be found in clause 10.

7.5 Relationship of the user view and functional view to cross-cutting aspects
Cross-cutting aspects, as their name implies, apply across both the user view and across the functional view
of cloud computing.
Cross-cutting aspects apply to roles and sub-roles in the user view and they directly or indirectly affect the
activities which those roles perform.
Cross-cutting aspects also apply to the functional components within the functional view, which are used
when performing the activities described in the user view.
Cross-cutting aspects of cloud computing described in clause 8.5 include:

• auditability;
• availability;
• governance;
• interoperability;
• maintenance and versioning;
• performance;

• portability;
• protection of personally identifiable information;
• regulatory;
• resiliency;
• reversibility;

• security;
• service levels and service level agreement.

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