title: Difference between web services and web application
body: <p>Lets have an example scenario:</p>
  
  <p>Client opens a web site and finds the sum of two numbers which he enters from the textboxes.Then clicks on the ADD button.Two parameters are HTTP GET'ed to server where PHP code is written to add the numbers and result is echo'ed.</p>
  
  <p>Based on this scenario could anybody explain the difference between Web services and application?</p>