Organizations seeking to move applications into the cloud have five options: rehost on infrastructure as a service (IaaS), refactor for platform as a service (PaaS), revise for IaaS or PaaS, rebuild on PaaS, or replace with software as a service (SaaS), according to Gartner, Inc.
“When the CIO issues the simple directive: ‘Move some applications to the cloud’, architects face bewildering choices about how to do this, and their decision must consider an organization’s requirements, evaluation criteria, and architecture principles,” said Richard Watson, research director at Gartner. “However, no alternative offers a silver bullet: all require architects to understand application migration from multiple perspectives and criteria, such as IT staff skills, the value of existing investments, and application architecture.”
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Five Ways to Migrate Applications to the Cloud - Gartner
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