What is SaaS, IaaS, and PaaS?

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I was in a meeting and they’re talking about these. I looked it up on the internet but I just can’t wrap my head around it. It feels like a buzzword to me that you say during interview but I want to understand it.

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Anonymous 0 Comments

The “aaS” letters usually mean “as a service”. For instance, SaaS means “Software as a Service”.

In that specific case, the idea is that instead of selling a specific version of a piece of software on a disc or as a download, the vendor keeps control of the software and you pay a recurring subscription fee.

The problem from the vendor’s point of view is that they release a new version every year or two but people won’t pay for the upgrade until they are forced to. Meanwhile, the user balks at paying a lump sum of $200 (or hugely more) to upgrade every year or two.

The solution from the vendor’s point of view is to sell the software as a subscription service. The user pays a smaller, more palatable recurring fee and the vendor gets a constant revenue stream.

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