What do you see outside the cloud is more important to define than what should be inside the cloud. It is deficult to identify what should be inside the cloud, and its a complex question like what is really Web 2.0 .
When web 2.0 came a few knew a little bit, but they were literally confused of how to define it, and few years later, every one knew, thats a term that can be used to gain better / easy market attention and but not attraction. Still not a clear way to define it.
Any new concept needs to gain attention, which should turn into attraction (at least for developers in the world of IT), for every one to implement it in a development world. Geeks jump on every thing, but that does not mean its popular. Users should jump on and luv to use the same beauty. If not then its real waste of time and money on every new concept of that category even if only net geeks junk blogs on that.
Now lets define Cloud Computing.
Definition : A process of computation that is developed in one or many definable locations and the same which compiles or executes (based on type of application) in a non definable location, over a non specific platform connecting to any type of application only via an interface (API) which is appendable, deductible & alterable at will of development from single point by secured application configuration is defined as Cloud Computing.
Beauty of Transfer :
SaaS (Software as Service) : Helped users to get things done, without loading Software on their define location / server / machine.
HaaS (Hardware as Service ) : Helped users to get things done using a hardware which does not exist in their location.
PaaS (Platform as Service) : Helped users to use (HaaS) and (SaaS) together, for their benifit.
Though these were existing, if you want your app from one service provider to another , yuck... ull have to cry the hell out of you wallet do bare those expenses.
With Cloud in picture, you develop your app that might have a (HaaS) which you can switch any time you want.
With Cloud in picture, you develop your app that might have a (SaaS) whose interface you can swith any time you want.
With Cloud in picture, you develop your app that can move where ever you want, but you dont know the physical location of where exactly your app runs from.
Worries for you : Only your development
Happines for you : Lower Cost
Risk for you : Data Security.
