Comet A New Approach to Ajax Applications
What is Comet? <ul><li>Comet  describes applications where the server keeps pushing data to the client, instead of having ...
 
 
When use comet? <ul><li>Single interaction updates are not enough </li></ul><ul><li>User in the same ‘space’ need live upd...
Benefits <ul><li>Applications can deliver data to the client at any time, not only in response to user input  </li></ul><u...
Who is using? <ul><li>GMail’s GTalk integration  </li></ul><ul><li>Jot Live  </li></ul><ul><li>Renkoo  </li></ul><ul><li>M...
References <ul><li>http://alex.dojotoolkit.org/?p=545 </li></ul><ul><li>http://ajaxian.com/archives/comet-a-new-approach-t...
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Comet

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Comet

  1. 1. Comet A New Approach to Ajax Applications
  2. 2. What is Comet? <ul><li>Comet describes applications where the server keeps pushing data to the client, instead of having the browser keep polling the server for fresh content </li></ul>
  3. 5. When use comet? <ul><li>Single interaction updates are not enough </li></ul><ul><li>User in the same ‘space’ need live update of: </li></ul><ul><ul><li>Their own changes </li></ul></ul><ul><ul><li>The changes other make </li></ul></ul>
  4. 6. Benefits <ul><li>Applications can deliver data to the client at any time, not only in response to user input </li></ul><ul><li>The data is delivered over a single, previously-opened connection. </li></ul><ul><li>Avoids HTTP & TCP/IP set-up and tear-down </li></ul><ul><li>Reduces the latency for data delivery </li></ul>
  5. 7. Who is using? <ul><li>GMail’s GTalk integration </li></ul><ul><li>Jot Live </li></ul><ul><li>Renkoo </li></ul><ul><li>Meebo </li></ul>
  6. 8. References <ul><li>http://alex.dojotoolkit.org/?p=545 </li></ul><ul><li>http://ajaxian.com/archives/comet-a-new-approach-to-ajax-applications </li></ul>

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