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FYP: LYU0001 Wireless-based Mobile E-Commerce on the Web. Supervisor: Prof. Michael R. Lyu By: Tony, Wat Hong Fai Harris, Yan Wai Keung. Outline. Introduction Traditional web access vs mobile access Protocol : WAP WAP architecture, limitation and future E-Commerce Model

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Fyp lyu0001 wireless based mobile e commerce on the web

FYP: LYU0001Wireless-based MobileE-Commerce on the Web

Supervisor: Prof. Michael R. Lyu

By: Tony, Wat Hong Fai

Harris, Yan Wai Keung


Outline
Outline

  • Introduction

  • Traditional web access vs mobile access

  • Protocol : WAP

  • WAP architecture, limitation and future

  • E-Commerce Model

  • Our Future work

  • XML, XSL


Web access vs mobile access

Web vs WAP

Different protocols to be used

HTML for standard web browser (IE/Netscape)

WML for small narrowband device (mobile phone/PDAs)

WML is not as visually rich as HTML.

Web Access vs Mobile Access


WAP

  • WAP – Wireless Application Protocol

  • Based on already existing Internet protocols, but are optimized for mobile users with wireless devices

  • Specification for developing applications over wireless communication networks

  • Translating internet information to display on the screen of mobile phones or other portable device.

  • mobile phone from which you can surf the web, but it is not all the case


Wap architecture 1
WAP Architecture(1)

  • A web server can host the WAP

  • A WAP Gateway is an intermediary between the Internet and the mobile network.

  • translates mobile device requests (WAP requests) into HTTP requests, redirects the web-server's HTTP responses to the mobile

  • An Emulator downloads a WML file directly from a web-server



WML

  • WML – Wireless Markup Language

  • Specific type of XML (eXtensible Markup Language)

  • Standardized Document Type Definition (DTD) by W3C

  • Functional Areas:1. Text presentation and layout2. Deck/card organizational metaphor,3. Inter-card navigation and linking4. String parameterization and state management (WML variables)5. Interface to phone features


Wap limitation
WAP Limitation

  • Designed with constraints:1. Small display and limited input facilities2. Narrowband network connection3. Limited memory and computational resources

  • Narrow bandwidth: 9.6kbps

  • Maximum size of each deck: 1.4 Kbytes

  • Recently, only text and monochrome images (.wbmp) are supported

GIF format on web

WBMP format on WAP


Wap future
WAP Future

  • Recently, WAP(version 1.2) is based on GSM, CDMA or TDMA networks (2G)

  • Later on, gateway can get the user’s information, such as phone number and current location.

  • GPRS (General Packet Radio Service) is a mobile telephony network system that uses packet switched data transmission (2.5G).

  • It provide faster speed (max. 172kbps) and better application can be developed. Eg. Multimedia applications and remote LAN access

  • When 3G is available in the market, it will make video conferencing possible


E commerce model
E-Commerce Model

  • Our objective is to practise real life e-commerce with security and payment issues

  • Design and Develop a WAP-based E-Commerce application on the Web

  • A Second hand market application is to be built for real-time interaction, purchasing and transaction with payment

  • Accessible with WAP-enabled device such as mobile phone and PDAs


Facilities of the model 1
Facilities of the Model(1)

  • Posting products for sale or to request for

  • Secure payment method by Visa/Master card, Mondex

  • Real-time buyer-seller interaction including chatting to bargain for the price

  • Real-time purchasing and make transaction


Facilities of the model 2
Facilities of the Model(2)

  • Session propagation for convenient and secure operations

  • Provide pictures for web and wap users

  • Store user transaction history and personal profile


Future work 1
Future work(1)

  • Implement the online market in both web and WAP versions

  • Customize and personalize the UI of WAP browser to meet complex e-commerce model

  • Use of XML to manipulate the raw data to make it generic for future development on WAP technology

  • Use of XSL for transformation from a XML document to HTML or WML depends on users’ request



Introduction to xml and xsl
Introduction to XML and XSL

  • XML (eXtensible Markup Language)- a meta language used to define other domain- or industry-specific languages- Creating markup languages that describe data- Human readable format- targeted to different devices using XSL- No fixed set of elements- a specific Document Type Definition (DTD) is needed to provide the rules that define the elements and structure


Introduction to xsl
Introduction to XSL

  • XSL (eXtensible Stylesheet Language)- is XML- a language for transforming XML documents [XSLT]- an XML vocabulary for specifying formatting semantics [XSL FO (formatting objects)]- A description of how to present the transformed information- a syntax for addressing parts of a document [XPath]


Advantages of xml and xsl 1
Advantages of XML and XSL(1)

  • Use of XML to increase the flexibility on manipulating the raw data

  • Reuse of fragments of data

  • multiple output formats


Advantages of xml and xsl 2
Advantages of XML and XSL(2)

  • styles tailored to the reader's preference (e.g., accessibility)

  • standardized styles

  • freedom from style issues for content authors


The end

The End

Thank You!


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