Normal web app Vs cloud based web app
We get to hear cloud based computing a lot these days.
I just wanted to understand the basic difference between a web app and one which uses cloud based (SAAS model as they also say) It is said that the cloud means hosting the application at a common place for all the users, instead of one per user. But I find it confusing since a normal web app also does the same. So what is the difference ?
Answer
Although many times SaaS might sound similar to webhosting , they are different in the following aspects :
- SaaS application access is frequently sold using a subscription
model, with customers paying an ongoing fee to use the application.
- The SaaS provider hosts the application and data centrally—deploying patches and upgrades to the application transparently, and delivering access to end users over the Internet through a browser or smart-client application
- And of course the main difference being multitenancy where the
application layer and sometimes the application itself is different for each tenant based on the varying levels of tenancy
.