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The electronic payment systems

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The electronic payment systems

  1. 1. The e-Payment Systems
  2. 2. Electronic Commerce (E-Commerce)• Commerce refers to all the activities thepurchase and sales of goods or services.– Marketing, sales, payment, fulfillment, customer service• Electronic commerce is doing commercewith the use of computers, networks andcommerce-enabled software (more than justonline shopping)
  3. 3. Advantages of Electronic Commerce• Increased sales– Reach narrow market segments in geographicallydispersed locations– Create virtual communities• Decreased costs– Handling of sales inquiries– Providing price quotes– Determining product availability• Being in the space
  4. 4. Disadvantages of Electronic Commerce• Loss of ability to inspect products fromremote locations• Rapid developing pace of underlyingtechnologies• Difficult to calculate return on investment
  5. 5. Infrastructure for E-commerce• The Internet– system of interconnected networks that spans the globe– routers, TCP/IP, firewalls, network infrastructure,network protocols• The World Wide Web (WWW)– part of the Internet and allows users to shareinformation with an easy-to-use interface– Web browsers, web servers, HTTP, HTML• Web architecture– Client/server model– N-tier architecture; e.g., web servers, applicationservers, database servers, scalability
  6. 6. Distinct Categories of e-Commerce• Business to Consumer (B2C)• Business to business (B2B)• Consumer to Consumer (C2C)• Consumer to Business (C2B)
  7. 7. Four Categories of e-CommerceB2BB2B C2BC2BB2CB2C C2CC2CBusiness ConsumersBusiness originating from . . .BusinessConsumersAnd sellingto . . .
  8. 8. Electronic Payment Systems
  9. 9. E-payment systems• To transfer money over the Internet• Methods of traditional payment– Check, credit card, or cash• Methods of electronic payment– Electronic cash, software wallets, smart cards, andcredit/debit cards
  10. 10. Requirements for e-payments• Atomicity– Money is not lost or created during a transfer• Good atomicity– Money and good are exchanged atomically• Non-repudiation– No party can deny its role in the transaction
  11. 11. Desirable Properties of Digital Money• Universally accepted• Transferable electronically• Divisible• Private (no one except parties know theamount)• Anonymous (no one can identify the payer)No known system satisfies all.
  12. 12. Types of E-payments• E-cash• Electronic wallets• Smart card• Credit card
  13. 13. Electronic Cash• Primary advantage is with purchase ofitems less than $10– Credit card transaction fees make small purchasesunprofitable– Micropaymentso Payments for items costing less than $1
  14. 14. E-cash ConceptMerchantConsumerBank123451. Consumer buys e-cash from Bank2. Bank sends e-cash bits to consumer (aftercharging that amount plus fee)3. Consumer sends e-cash to merchant4. Merchant checks with Bank that e-cashis valid (check for forgery or fraud)5. Bank verifies that e-cash is valid6. Parties complete transaction: e.g., merchantpresent e-cash to issuing back for depositonce goods or services are delivered
  15. 15. Advantages and Disadvantages ofElectronic Cash• Advantages– More efficient, eventually meaning lower prices– Lower transaction costs– Anybody can use it, unlike credit cards, and does notrequire special authorization• Disadvantages– Susceptible to forgery
  16. 16. Past and Present E-cash Systems• E-cash not popular in U.S., butsuccessful in Europe and Japan– Reasons for lack of U.S. success not clearo Manner of implementation too complicatedo Lack of standards and interoperable software thatwill run easily on a variety of hardware and softwaresystems
  17. 17. Past and Present E-cash Systems• CyberCash• CyberCoins• DigiCash• Coin.Net
  18. 18. Electronic Wallets• Stores credit card, electronic cash, owneridentification and address– Makes shopping easier and more efficiento Eliminates need to repeatedly enter identifyinginformation into forms to purchaseo Works in many different stores to speed checkout– Amazon.com one of the first online merchants to eliminaterepeat form-filling for purchases
  19. 19. An Electronic Checkout Counter Form
  20. 20. Electronic Wallets• Agile Wallet– Developed by CyberCash– Allows customers to enter credit card and identifyinginformation once, stored on a central server– Information pops up in supported merchants’ payment pages,allowing one-click payment– Does not support smart cards or CyberCash, but companyexpects to soon• eWallet– Developed by Launchpad Technologies– Free wallet software that stores credit card and personalinformation on users’ computer, not on a central server; info isdragged into payment form from eWallet– Information is encrypted and password protected– Works with Netscape and Internet Explorer
  21. 21. Electronic Wallets• Microsoft Wallet– Comes pre-installed in Internet Explorer 4.0, but not inNetscape– All information is encrypted and password protected– Microsoft Wallet Merchant directory shows merchantssetup to accept Microsoft Wallet
  22. 22. Entering Information Into Microsoft Wallet
  23. 23. Smart Cards• Plastic card containing an embedded microchip• Available for over 10 years• So far not successful in U.S., but popular inEurope, Australia, and Japan• Smart cards gradually reappearing in U.S.;success depends on:– Critical mass of smart cards that support applications– Compatibility between smart cards, card-reader devices,and applications
  24. 24. Smart Cards• Magnetic stripe– 140 bytes, cost $0.20-0.75• Memory cards– 1-4 KB memory, no processor, cost $1.00-2.50• Optical memory cards– 4 megabytes read-only (CD-like), cost $7.00-12.00• Microprocessor cards– Embedded microprocessoro (OLD) 8-bit processor, 16 KB ROM, 512 bytes RAMo Equivalent power to IBM XT PC, cost $7.00-15.00o 32-bit processors now available
  25. 25. Smart Card Applications• Ticketless travel– Seoul bus system: 4M cards, 1B transactions since 1996– Planned the SF Bay Area system• Authentication, ID• Medical records• Ecash• Personal profiles• Government– Licenses• Mall parking. . .
  26. 26. Advantages and Disadvantagesof Smart Cards• Advantages:1. Atomic, debt-free transactions2. Feasible for very small transactions (informationcommerce)3. (Potentially) anonymous4. Security of physical storage5. (Potentially) currency-neutral• Disadvantages:1. Low maximum transaction limit (not suitable for B2B ormost B2C)2. High Infrastructure costs (not suitable for C2C)3. Not (yet) widely used
  27. 27. Mondex Smart Card• Holds and dispenses electronic cash (Smart-cardbased, stored-value card)• Developed by MasterCard International• Requires specific card reader, called Mondexterminal, for merchant or customer to use cardover Internet• Supports micro-payments and works both onlineand off-line at stores or over the telephone• Secret chip-to-chip transfer protocol
  28. 28. Mondex Smart Card Processing
  29. 29. Credit Cards• Credit card– Used for the majority of Internet purchases– Has a preset spending limit– Currently most convenient method– Most expensive e-payment mechanismo MasterCard: $0.29 + 2% of transaction value– Disadvantageso Does not work for small amount (too expensive)
  30. 30. EMTM 553Processing a Payment Card Order
  31. 31. Setting Up Merchant Account• Merchant bank– Also called acquiring bank– Does business with merchants that want to acceptpayment cards– Merchant receives account where they deposit card salestotals– Value of sales slips is credited to merchant’s account
  32. 32. Credit Card Processing
  33. 33. Debit Card• A debit card is a plastic card which provides analternative payment method to cash when makingpurchases. Physically the card is an ISO 7810 cardlike a credit card;• Depending on the store or merchant, the customermay swipe or insert their card into the terminal,or they may hand it to the merchant who will doso. The transaction is authorized and processedand the customer verifies the transaction eitherby entering a PIN or, occasionally, by signing asales receipt.
  34. 34. Credit card VS Debit card• You can obtain credit in credit card but not in debitcard.• Credit card charges interest for using the banksmoney. (debit card is free from this problem)
  35. 35. ThanksFor FeedbackVishalchd11@yahoo.com

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