AJAX Impact on Telecom

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AJAXImpact on Telecom

• Its not just for web sites anymore

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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

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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

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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

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Are people doing this today?
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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

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VoiceXML

• Used to create interactive Voice Dialogs
• VoiceXML Speech HTML Web
• AJAX-style development via the ltdatagt element
• Uses ECMAScript as it's primary scripting language

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Demo
Demo Score!
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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

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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!

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Demo
Demo Your clicks are important to us
Thanks to the ITP Program at NYU for the idea
http//itp.nyu.edu/itp/
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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 its authors may have never
  imagined!

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But dont 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

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Social Impact of AJAX

• Service Oriented Architectures (SOA)
• Mass adoption Open Standards
• Free services funded by advertising
• Faster ECMAScript Engines!!!

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QA