My favorite inquiry from a client is, “Does vendor X support SaaS? “. I respond by first going through the Gartner SaaS definition. I then make a determination. After which I say, who cares. I tell the client it is more important how a vendor supports specific components of SaaS . I just published a research note: Four Components Define Software as a Service. SaaS must be service-based, shared, scalable, and paid for on a subscription or pay for use basis. The details on how a vendor achieves these components vary. The research note provides good context to the real questions you should consider when evaluating a vendor who is offering SaaS.
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