Two's Company, Three's a Cloud: Challenges to Implementing Service Models

Provided by: Waldemar Kunicki
Topic: Cloud
Format: PDF
Although three models are currently being used in cloud computing (Software-as-a-Service, Platform-as-a-Service, and Infrastructure-as-a-Service), there remain many challenges before most business accept cloud computing as a reality. Virtualization in cloud computing has many advantages but carries a penalty because of state configurations, kernel drivers, and user interface environments. In addition, much non-standard architecture exists to power cloud models that are often incompatible. Another issue is adequately provisioning the resources required for a multi-tier cloud-based application in such a way that on-demand elasticity is present at vastly different scales yet is carried out efficiently.

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