In conventional or on-premise setup, if one has to change the IT service provider, the applications (database and the codebase) remains with the client organization. The client has to identify a new vendor, who will do a transition from the old vendor and with some hiccups always, this will proceed alright and the new vendor will be in charge of the same application set. The users largely remain unaffected, and organizations do not have to invest in costly training.
Not in SaaS model. If you sign up with one provider, and want to migrate to another for your own reasons, you need to make sure business users are not affected. For this to happen, the new SaaS vendor must have the capability to take over from the old service provider, and data continuity must be ensure. Which begs the question- how does one ensure a seamless transition in a SaaS model?
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