As the ideas and concepts behind PaaS platforms continue to evolve, it is becoming quite clear that they those platforms will consist of many facets.

These systems will consist of application runtime services (both shared and dedicated), application modeling capabilities, and runtime monitoring to name but a very few. While all of these will be necessary to deliver a truly effective PaaS platform, if you ask the casual cloud follower what they identify as the key characteristic for PaaS, and I would be willing to wager that 9 out of 10 say runtime elasticity.

Originally posted here:
PaaS Elasticity Is Harder to Achieve Than You Think