Trading Latency and Costs

In the context of PrEstoCloud, application micro-services, or fragments, can be placed either in a public cloud (e.g. Amazon Web Services), a private cloud (e.g. an on-site OpenStack instance), and on IoT devices located at the extreme edge of the network.
Due to the pay-as-you-go nature of public cloud, it is essential to carefully select (i) the cloud provider, and (ii) the location in which to deploy a fragment, so as to meet operational constraints (such as latency), but also ensure the deployment cost is acceptable to the application owner.
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