Choosing the Best PaaS
Platform as a Service (PaaS) is one of the main three models for Cloud computing along with Infrastructure as a Service (IaaS) and Software as a Service (SaaS). In this article, John Rhoton presents some of the leading PaaS cloud platforms and provides guidance about how to choose the one that is the best for your needs.
The article propose a set of questions when you select a PaaS cloud?
* Open vs proprietary vs mixed (and how mixed) …a few concepts in each of these would be enough.
* The hosting structure and limitations: Supports this but not this, etc.
* Resource allocation methods: Level of automation, ease to tap, deallocation ease same as allocation, etc.
* Data storage capabilities and methods: Is persistent automatic or only upon request, etc.
* Development tools supported management tools supported.
* Performance vs transaction types and volume.
* Security of the various cloud components: How is security handled?
The article examines the following platforms: Google App Engine, Windows Azure, Force.com, Amazon Web Services, VMware, IBM SmartCloud Application Services. His conclusion is that “The good news is that there are many options, which increases the likelihood of finding a match. However, the bad news is that the customer must make a choice, and it is not always an easy one to make.”