Wireless Application Protocol(WAP)

Mobile Computing Tutorial



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Wireless Application Protocol(WAP) : Introduction

  • Wireless Application Protocol is a programming model which is made on the concept of World Wide Web(WWW) programming model and the hierarchical design is somehow similar to TCP/IP protocol stack design.
  • WAP is a standard which enables the mobile devices to interact, exchange and transmit information over the internet. It is a De-Facto standard.
  • As, WAP is based upon the concept of World Wide Web, the backend functioning also remains similar i.e. HTML is used on WWW and Wireless Mark-up Language(WML) is used in WAP for using the WAP services.
  • Since the WAP model is developed, it is accepted as a wireless protocol globally that is capable of working on multiple wireless technology such as mobile, printers, pagers etc.
  • Another reason for opting and making WAP as De-Facto standard was its ability of creating web applications for mobile devices.

 

Wireless Application Protocol Model : Working

  • WAP model comprises of 3-Levels that are : Client, Gateway and Origin Server.
  • The WAP user agent sends a request via mobile to WAP gateway by using encoded WAP protocol i.e. called as encoding request.
  • The encoding request is translated through WAP gateway and is further forwarded in the form of HTTP request to the server side where scripts are available.
  • Response from the scripts and content is picked up as requested, through HTTP and is forwarded to the WAP gateway once again.
  • The required HTTP response is then forwarded in decode format to the client protocol stack as the final response for the initial request made by client.   

 

This image describes the overall concept and architecture of the Wireless Application Protocol(WAP).

Wireless Application Protocol

 

Advantages : Wireless Application Protocol

  • Fast paced technology.
  • Open source-Free.
  • Can be implemented on multiple platform.
  • Independent of network standard.
  • Higher controlling options.

Disadvantages : Wireless Application Protocol

  • Fast Paced Technology
  • Less Secured.
  • User interface(UI) is small.
  • Less availability.

Applications : Wireless Application Protocol

  • E-mails access.
  • Weather forecasting.
  • Flight information.
  • Movie & cinema information.
  • Traffic updates.