Moving large amounts of data to and from the cloud needs to be carefully considered e.g. massive amount of legacy geospatial or multimedia data. Discipline in cloud resource usage is critical, only using what is needed and turn off when done. A new internal chargeback/billing process is required.
Employee perception of privacy and data security needs to be carefully managed. Ensuring the appropriate legal aspects have been addressed. Vendor lock-in, once you move to the cloud it can be difficult to move vendor when highly desirable added value functions are used.
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