Deliverable D1.2 “Report on of Cloud Service Classifications and Scenarios” has been finalized, reviewed and submitted to EC at the end of October 2013. The document itself represents the official conclusion of WP1 activities as well as the conclusion of the first year of the SmartenIT project. The deliverable has achieved three main targets:

• Target 1: classification of most common Cloud applications and services and evaluation of their positioning and relevance within SmartenIT scenarios. Cloud service.
• Target 2: full description of SmartenIT scenarios
• Target 3: review of most common approaches in terms protocols, tools, hardware and software, for traffic measurement SmartenIT in traffic measurements Traffic trends and analysis

In the actual post we want to focus on the main outcomes achieved via the second target: the full description of SmartenIT scenarios.

In the initial phase of the project, four scenarios were present in SmartenIT framework. During the first year of project, after a continuous and fruitful internal discussion that has involved all SmartenIT partners, it became clear the need to narrow down the number of the scenarios in order to restrict the number of related use-case and in order to better focus SmartenIT key issues. A certain number of proposal were made to restrict the number of scenarios to be described, and final choice has been made to consider the initial four scenario key features and mix them by creating a sort of two macro-scenario that will inherit a certain pool of characteristics of initial scenarios. The resulting macro-scenario can be described as:

• Operator-focused scenario which inherits all features of the ICC and EEF scenario, but contains also selected key features from the GSM and SAW scenarios, both primarily addressing the operators’ point of view.
• End user-focused scenario which inherits all features from the GSM and SAW scenarios as well as major considerations taken from the EEF scenario, especially energy efficiency related to the end-user devices.

From the above mentioned table the following consideration can be taken:

• The two formed macro-scenario allows for splitting the focus on end-user needs (Service mobility, improve the Quality of Experience of the purchased service, Energy efficiency for user terminal equipment) and on Operator needs (Resources orchestration, Cloud Federation formation, Energy efficiency, inter-cloud traffic optimization, interaction among Data Center Operator, Internet Service Provider and Cloud Application providers),
• The two formed macro-scenarios allows for splitting technical features in two macro areas: the end-user area (end-user streams key features of burstiness, volatility, and application dependent) and the operator area (service-agnostic aggregation of both elastic and inelastic traffic),
• The two formed macro-scenario allows for splitting the interest from a business point of view, with the end-user scenario representing the retail market and the operator scenario representing the wholesale market,
• The two macro-scenario allows features composition that were not present in the original scenario specification, e.g. the merging of the inter-cloud traffic management issues within a social awareness framework,
• The reduced number of scenario, and consequently of related use-cases will ease the future work of SmartenIT activities regarding traffic management mechanism and architecture definition and will increase the deployability of SmartenIT prototype.

Author: Paolo Cruschelli (IRT)