title: Web application, SAAS?
body: <p>I am trying to undestand "What really SAAS is". It is Software as a Service, and hotmail outlook is one example of SAAS. But I am still in confusion. 
  Suppose, I built an web app "Hospital Management System" which keeps the record of all patient and all that, Is it a Software as a Service. What specific things are needed to be a Software as a Service, or just a web app is a SAAS???? </p>