title: Using core data with web services
body: <p>I am a newbie in Xcode. I am developing an iPhone app where I need to send and receive data from a web service. And I need to store them temporarily in my app. I don't want to use SQLite. So I wondering if I should use core data for this purpose. I read some articles but I still don't have a clear picture of How to do it, because I have used core data only with SQLite. I want to do the following things : </p>
  
  <ol>
  <li>How to receive table data from a web service?</li>
  <li>Have to perform certain calculations on those fields.</li>
  <li>How to send the data back in xml format to the server?</li>
  </ol>
  
  <p>How do I convert the xml data into int, date or any other data type? And How do I store it in managed data objects?</p>