Vendor cloud (External):
Vendor (or provider) cloud computing services can be accessed across the Internet or a private network, using one or more data centres, shared among multiple customers, with varying degrees of data privacy control. Sometimes called “public” cloud computing.Internet or a private network, using one or more data centres, shared among multiple customers, with varying degrees of data privacy control. Sometimes called “public” cloud computing.
Private cloud (Internal):
Computing architectures modelled on vendor clouds, yet built, managed and used exclusively by a single enterprise; uses a shared services model with variable usage of a common pool of virtualised computing resources. Data is controlled within the enterprise.
Hybrid cloud:
A mix of vendor cloud services, internal cloud computing architectures, and IT infrastructure, forming a hybrid model that uses industry good practice technologies to meet specific needs.
Community cloud:
Community clouds are used across organisations that have similar objectives and concerns, allowing for shared infrastructure and services. Community clouds can be deployed using any of the three methods outlined above, simplifying cross-functional IT governance.
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