Interoperability-IaaS market perspective The aggregation of currently autonomous Cloud systems in so called Cloud ecosystems will provide new opportunities to meet the demands of users but also introduces requirements for an autonomic management that is in alignment with these demands. The facilitation of cross-platform execution as needed for service composition across multiple, heterogeneous environments to act as an enabler for what the Gartner Group’s PaaS-roadmap envisions as a comprehensive application infrastructure PaaS [GARTNER].
Interoperability amongst different Clouds vendors will be at the core of proposal developments, allowing the ability to orchestrate services across Cloud ecosystems. A Cloud ecosystem should also aggregate service providers that offer their services according to a given set of Service Level Objects (SLOs). Essential areas of these SLOs are security, geographical location of the data processing and storage, software licences at a specific location, the parameters of the Cloud, QoS, the robustness of the service and of course the ever essential costs of the service.