PaaS Deployment Models

Rapid deployment capability is table stakes when we are talking about a PaaS solution. Every vendor touts it, and to be frank, every user simply expects it to be there. While I think it is interesting to talk about rapid deployment and perhaps compare speed of one solution to that of another, I think it is infinitely more interesting to talk about the mechanics of deployment for a particular solution. That is, I think the more interesting and important question is ‘What deployment style does a particular solution take?’
At a very high, black and white level, I think two primary deployment styles permeate the landscape of PaaS today: contained and referential. I want to compare each approach, but before that, let me use a few words to describe each style.

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