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AJAX Impact on Telecom

AJAX Impact on Telecom. It’s not just for web sites anymore. So what is AJAX?. Asynchronous JavaScript and XML Refers to a programming model in which the user Interface is driven by data instead of “pages” DOM manipulation is used to update UI components

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AJAX Impact on Telecom

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  1. AJAXImpact on Telecom • It’s not just for web sites anymore

  2. So what is AJAX? • Asynchronous JavaScript and XML • Refers to a programming model in which the user Interface is driven by data instead of “pages” • DOM manipulation is used to update UI components • Sites and applications are more responsive

  3. Technical Impact of AJAX on the Web • Advantages • Application skeleton only downloaded once • Can result in significant reduction in bandwidth • Asynchronous requests allow browser to be more responsive • Page transitions are eliminated resulting in less "flicker" • Disadvantages • Applications become more chatty • Harder to develop • Breaks the back button • Impacts “bookmarkability”

  4. Technical Impact of AJAX on Telecom • Advantages • Application skeleton only downloaded once • Can result in significant reduction in bandwidth • Asynchronous requests allow browser to be more responsive • Page transitions are eliminated resulting in less "flicker" • Disadvantages • Applications become more chatty • Harder to develop • Breaks the back button • Impacts “bookmarkability”

  5. Are people doing this today?

  6. Sure, Voice Browsers have needs too! • VoiceXML and CCXML engines are browsers • Governed by the W3C • Based on proven web standards/techniques • Open protocols (HTTP, SSL) • Request-response model • HTTP 1.1 Caching • Intelligent resource pre-fetching

  7. VoiceXML • Used to create interactive Voice Dialogs • VoiceXML : Speech :: HTML : Web • AJAX-style development via the <data> element • Uses ECMAScript as it's primary scripting language

  8. Demo Demo: “Score!”

  9. Demo Overview • What did we cover? • VUI downloaded once per call instead of once per lookup • Scores loaded “on-the-fly” using a custom Web Service • Audio files are cached via standard HTTP caching headers • Wait, but was that asynchronous? • No, VoiceXML is effectively a procedural language • To do true AJAX we need an event/callback model

  10. Enter CCXML... • A complementary standard to VoiceXML • Completely asynchronous! • Allows interaction with low level signaling (i.e. SIP) • A container for VoiceXML Dialogs • Loves ECMAScript!

  11. Demo Demo: “Your clicks are important to us” * Thanks to the ITP Program at NYU for the idea: http://itp.nyu.edu/itp/

  12. Demo Overview • What did we cover? • Asynchronous event processing • CCXML was able to send and receive messages from an external source • We leveraged several open source JavaScript libraries in a way it’s authors may have never imagined!

  13. But don’t stop there! • AJAX is not just about performance! • The emergence of AJAX brought on a landslide of innovation that has fundamentally changed the way we approach software delivery (e.g. Software as a Service) • AJAX requires that developers separate their UI from the underlying data; maximizing code reuse • Massive online social networks and countless Internet superstars owe their beginnings to this new development paradigm

  14. Social Impact of AJAX • Service Oriented Architectures (SOA) • Mass adoption Open Standards • Free services funded by advertising • Faster ECMAScript Engines!!!

  15. Q&A

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