Page 819 - Cloud computing: From paradigm to operation
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Intercloud and interoperability                                     5


             Title                       Distributed information exchange system in trusted inter-cloud
                                         –  The CSC requests that physical location (localization) for their data store as
                                            well as CSP can be chosen by CSC in an elastic manner.
                                         –  The primary CSP(SaaS) in an inter-cloud intermediary pattern (acts as
                                            CSP(Intermediary)) is the contact point for CSC.
                                         –  The CSP(Intermediary) integrates and validate SaaS services from multiple
                                            CSPs (secondary CSPs).
                                         –  The CSP2(SaaS) offers the same service as CSP1(SaaS) or CSP3(SaaS) but does
                                            not meet the required business regulatory policy.
                                         –  For the CSP(Intermediary), in order to respect the  request of CSC, it is
                                            necessary to validate security and confidentiality policies from secondary
                                            CSP1(SaaS), CSP2(SaaS) and CSP3(SaaS). In case of negative validation, the
                                            secondary CSP offer is not presented to CSC.
                                         –  In case of connectivity problem between CSP(Intermediary) and CSP1, the
                                            SaaS service is automatically established between CSP(Intermediary) and
                                            CSP3.
                                         In particular, an example of such service could be PaaS-based processing of
                                         satellite image data for farm crop analysis.

             Roles                       CSC,CSP(SaaS)
             Figure (optional)
















             Pre-conditions (optional)   –  The primary CSP(SaaS) and secondary CSPs are in a trusted inter-cloud
                                            relationship.
                                         –  The CSP1(SaaS) and CSP3(SaaS) effects security, safety and confidentiality
                                            policies.
                                         –  The CSP2(SaaS) performs service out of business regulatory policy.
             Post-conditions (optional)   –  The CSP(Intermediary) guarantees the security and confidentiality policy of
                                            SaaS.
                                         –  The CSP(Intermediary) establishes service between CSC and CSP1(SaaS).
                                         –  The CSP(Intermediary) establishes service between CSC and CSP3(SaaS) in case
                                            of failed CSP1(SaaS).
             Derived requirements        –  security and confidentiality policies
                                         –  master service agreements
                                         –  on-demand data security services
                                         –  deployment and monitoring of security policies around CSPs
                                         –  respect data regulation policy (e.g., medical, financial, defence, etc.)
                                            NOTE – Regulation policy concern regulation applied to particular business.
                                         –  respect business regulatory policies
                                         –  resiliency service
                                         –  respect laws and regulations,
                                         –  respect local policies.






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