I’m often asked by clients whether they should restrict their use of the more advanced cloud features, such as certain Platform-as-a-Service (PaaS) capabilities. They share a common concern: the fear of vendor lock-in and lack of portability should they want to change their cloud supplier in the future. So is this a genuine threat or an unsubstantiated barrier to achieving cloud adoption?

In some circumstances, I believe their concerns are well founded. That’s because a degree of vendor lock-in is almost unavoidable, whether it’s due to complex PaaS use, or simply down to different standard compute sizing. But it is a concern that can be turned into an opportunity with a common sense approach and, above all, a well-defined exit strategy.

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