Digital Wallet: POS at Your Fingertips

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Digital Wallet POS at Your Fingertips

• Group 2
• Andrew Katan
• Khamara Lek
• Geoffrey Loy
• Michael Viray

ECE 4006 Section D Professor J. Schlag Professor
L. Milor


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Presentation Layout

• Digital Wallet Overview Geoffrey
• Client Implementation Michael
• Server Implementation Khamara
• GUI Problems Encountered - Andrew
• Market Cost Analyses - Andrew

Geoffrey Loy
Digital Wallet
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The Digital Wallet Concept

• A secure, restaurant ordering system with
  wireless capabilities
• Table kiosks or personal digital assistants
  (PDAs) for customers
• Electronic POS capabilities
• Efficient ordering and checkout
• Storage of credit card information

Geoffrey Loy
Digital Wallet
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Objectives

• Create client program for encrypting credit card
  information and communicating with restaurants
  servers
• Create server program to receive customer orders
  and perform transactions
• Place orders and perform transactions between
  server and client programs

Geoffrey Loy
Digital Wallet
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Features

• Download menu via PDA and kiosk
• Submit food orders to restaurant server
• Make secure wireless payments
• View and receive digital receipts
• Add/Edit credit card information

Geoffrey Loy
Digital Wallet
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Division of Labor

• Server Backend Khamara/Geoffrey
• Client Backend (PDA) Michael
• Graphical User Interface (GUI) Andrew
• Web page - All
• Final Report - All

Geoffrey Loy
Digital Wallet
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Implementation
Group 2
Digital Wallet
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Hardware

• Compaq Pocket PC PDA
• SDIO wireless (802.11x) card
• Vortex86 eBox-II Embedded System
• Laptop computer (server)
• Wireless access point
• 2 Monitors

Michael Viray
Digital Wallet
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Design Layout
Michael Viray
Digital Wallet
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Client/PDA Backend

• Target platforms
• PocketPC 2002
• Other Windows-based environments
• Development tools
• Embedded Visual C 3.0
• Visual Studio .net 2003 (debugging)
• Tasks for client backend
• Manage and secure credit card data
• Process viewing of menu/orders/payments

Michael Viray
Digital Wallet
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Client Backend CC Management

• List Class - linked list implementation
• Add, delete, and obtain entry functions
• File I/O functions
• Entry Class credit card instance
• Accessor and modifier functions
• Comparison function

Michael Viray
Digital Wallet
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Client Backend CC Security / Server Data Viewing

• Sensitive data storage issue
• Secure with wincrypt library
• Menu/order/payment view
• Server data HTML based
• Client must parse HTML data
• Implement HTML Viewer Control

Michael Viray
Digital Wallet
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Server Backend

• Tasks
• - Stores users, menu, and order information
• - Handles all transactions
• Software
• - Windows Server 2003
• - Internet Information Services (IIS) 6.0 web
  server
• - PHP 5
• - MySQL 4.0

Khamara Lek
Digital Wallet
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Server Backend Database
Khamara Lek
Digital Wallet
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Server Backend Information Flow
Hostess Terminal (Generates pin)
Restaurant server
Restaurant Display
Kitchen Terminal
PDA/Kiosk
Khamara Lek
Digital Wallet
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Graphical User Interface (GUI)

• Microsoft eMbedded Visual C
• Intuitive navigation
• Password protection
• Allows users to view past receipts
• Interacts with restaurant via web server

Andrew Katan
Digital Wallet
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GUI Example
Andrew Katan
Digital Wallet
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GUI Example
Andrew Katan
Digital Wallet
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Problems Encountered

• Credit card encryption
• Displaying web page in client program
• Integration of wireless card with PDA
• Credit card information and receipt transmission

Andrew Katan
Digital Wallet
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Market Analysis
Andrew Katan
Digital Wallet
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Restaurant Advantages

• Reduction of Operating Costs
• Save restaurant resources
• Reduce number of servers
• Scalability
• Flexibility to expand menus
• Integrity of orders

Andrew Katan
Digital Wallet
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Customer Advantages

• Increases Convenience
• Control time of orders and payments
• Eliminate the need to carry credit cards
• Maintain personal transaction history
• Allows easier access to waiters

Andrew Katan
Digital Wallet
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Target Markets

• High-end restaurants
• Busy casual restaurants
• Airport restaurants

Andrew Katan
Digital Wallet
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Distribution of Client Software

• Free download via Internet
• Encourage adoption of system

Andrew Katan
Digital Wallet
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Cost Analysis
Andrew Katan
Digital Wallet
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Non-Reoccurring Costs
Andrew Katan
Digital Wallet
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Reoccurring Costs
Note Table Kiosk cost assumes 10 kiosks
consisting of a touch LCD and a credit card
reader each.
Andrew Katan
Digital Wallet
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Questions?
Group 2
Digital Wallet
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