ELECTRONIC PAYMENT SYSTEMS

Electronic money

Electronic money, or e-money, is the money balance recorded electronically on a stored-value card. These cards have microprocessors embedded which can be loaded with a monetary value. Another form of electronic money is network money, software that allows the transfer of value on computer networks, particularly the internet. Electronic money is a floating claim on a private bank or other financial institution that is not linked to any particular account. Examples of electronic money are bank deposits, electronic funds transfer, direct deposit, payment processors, and digital currencies.
Electronic money can either be centralized, where there is a central point of control over the money supply, or decentralized, where the control over the money supply can come from various sources. Electronic money that is decentralized is also known as digital currencies. The major difference between E-money and digital currencies is that E-money doesn't change the value of the fiat currency (USD, EUR) it represents, but digital currency isn't equivalent to any fiat currency. In other words, all digital currency is Electronic money, but Electronic money isn't necessarily digital currency. Many mobile sub-systems have been introduced in the past few years including Google Wallet and Apple Pay.
History
In 1983, a research paper by David Chaum introduced the idea of digital cash. In 1990, he founded DigiCash, an electronic cash company, in Amsterdam to commercialize the ideas in his research. It filed for bankruptcy in 1998. In 1999, Chaum left the company.
In 1997, Coca Cola offered buying from vending machines using mobile payments. After that Paypal emerged in 1998. Other system such as e-gold followed suit, but faced issues because it was used by criminals and was raided by US Feds in 2005.  In 2008, bitcoin was introduced, which marked the start of Digital currencies.
Law
Since 2001, the European Union has implemented a directive "on the taking up, pursuit and prudential supervision of the business of electronic money institutions" last amended in 2009. Doubts on the real nature of EU electronic money have arisen, since calls have been made in connection with the 2007 EU Payment Services Directive in favor of merging payment institutions and electronic money institutions. Such a merger could mean that electronic money is of the same nature as bank money or scriptural money.
In the United States, electronic money is governed by Article 4A of the Uniform Commercial Code for wholesale transactions and the Electronic Fund Transfer Act for consumer transactions. Provider's responsibility and consumer's liability are regulated under Regulation E.
Uses of electronic money worldwide
•    Hong Kong’s Octopus card system: Launched in 1997 as an electronic purse for public transportation, is the most successful and mature implementation of contactless smart cards used for mass transit payments. After only 5 years, 25 percent of Octopus card transactions are unrelated to transit, and accepted by more than 160 merchants.
•    London Transport’s Oyster card system: Oyster is a plastic smartcard which can hold pay as you go credit, Travelcards and Bus & Tram season tickets. You can use an Oyster card to travel on bus, Tube, tram, DLR, London Overground and most National Rail services in London.
•    Singapore’s FeliCa: A contactless RFID smart card, used in a variety of ways such as in ticketing systems for public transportation, e-money, and residence door keys.
•    Netherlands’ Chipknip: As an electronic cash system used in the Netherlands, all ATM cards issued by the Dutch banks had value that could be loaded via Chipknip loading stations. For people without a bank, pre-paid Chipknip cards could be purchased at various locations in the Netherlands. As of January 1, 2015, you can no longer pay with Chipknip.
•    Belgium’s Proton: An electronic purse application for debit cards in Belgium. Introduced in February 1995, as a means to replace cash for small transactions. The system was retired in December 31, 2014.

Types of systems

Centralized systems
Many systems—such as PayPal, eCash, WebMoney, Payoneer, cashU, and Hub Culture's Ven will sell their electronic currency [clarification needed] directly to the end user. Other systems only sell through third party digital currency exchangers. The M-Pesa system is used to transfer money through mobile phones in Africa, India, Afghanistan, and Eastern Europe. Some community currencies, like some local exchange trading systems (LETS) and the Community Exchange System, work with electronic transactions.
Mobile sub-systems/Digital wallets
A number of electronic money systems use contactless payment transfer in order to facilitate easy payment and give the payee more confidence in not letting go of their electronic wallet during the transaction.
•    In 1994 Mondex and National Westminster Bank provided an 'electronic purse' to residents of Swindon
•    In about 2005 Telefónica and BBVA Bank launched a payment system in Spain called Mobipay which used simple short message service facilities of feature phones intended for pay-as you go services including taxis and pre-pay phone recharges via a BBVA current bank account debit.
•    In Jan 2010, Venmo launched as a mobile payment system through SMS, which transformed into a social app were friends can pay each other for minor expenses like a cup of coffee, rent and paying your share of the restaurant bill when you forget your wallet. It is popular with college students, but has some security issues. It can be linked to your bank account, credit/debit card or have a loaded value to limit the amount of loss in case of a security breach. Credit cards and non-major debit cards incur a 3% processing fee.
•    On September 19, 2011, Google Wallet was released in the US only, which makes it easy to carry all your credit/debit cards on your phone.
•    In 2012 O2 (Ireland) (owned by Telefónica)launched Easytrip to pay road tolls which were charged to the mobile phone account or prepay credit.
•    O2 (United Kingdom) invented O2 Wallet at about the same time. The wallet can be charged with regular bank accounts or cards and discharged by participating retailers using a technique known as 'money messages' The service closed in 2014
•    On September 9, 2014 Apple Pay was announced at the iPhone 6 event. In October 2014 it was released as an update to work on iPhone 6 and Apple Watch. It is very similar to Google Wallet, but for Apple devices only.
•    GNU Taler is an anonymous, open source electronic payment system currently (September 2015) in development.
Decentralized systems
 Cryptocurrency

Cryptocurrencies allow electronic money systems to be decentralized, systems include:
•    Bitcoin, a peer-to-peer electronic monetary system based on cryptography.
•    Litecoin, originally based on the bitcoin protocol, intended to improve upon its alleged inefficiencies.
•    Ripple monetary system, a monetary system based on trust networks.
•    Dogecoin, a Litecoin-derived system meant by its author to reach broader demographics.
•    Nxt, conceived as flexible platform to build applications and financial services around.

Hard  and soft electronic currencies

A hard electronic currency is one that does not have services to dispute or reverse charges. In other words, it is akin to cash in that it only supports non-reversible transactions. Reversing transactions, even in case of a legitimate error, unauthorized use, or failure of a vendor to supply goods is difficult, if not impossible. The advantage of this arrangement is that the operating costs of the electronic currency system are greatly reduced by not having to resolve payment disputes. Additionally, it allows the electronic currency transactions to clear instantly, making the funds available immediately to the recipient. This means that using hard electronic currency is more akin to a cash transaction. Examples are Western Union, KlickEx and Bitcoin.
A soft electronic currency is one that allows for reversal of payments, for example in case of fraud or disputes. Reversible payment methods generally have a "clearing time" of 72 hours or more. Examples are PayPal and credit card. A hard currency can be softened by using a trusted third party or an escrow service.
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E-COMMERCE PAYMENT SYSTEM

       
Over the years, credit cards have become one of the most common forms of payment for e-commerce transactions. In North America almost 90% of online retail transactions were made with this payment type. Turban et al. goes on to explain that it would be difficult for an online retailer to operate without supporting credit and debit cards due to their widespread use. Increased security measures include use of the card verification number (CVN) which detects fraud by comparing the verification number printed on the signature strip on the back of the card with the information on file with the cardholder's issuing bank. Also online merchants have to comply with stringent rules stipulated by the credit and debit card issuers (Visa and MasterCard)[3] this means that merchants must have security protocol and procedures in place to ensure transactions are more secure. This can also include having a certificate from an authorized certification authority (CA) who provides PKI(Public-Key infrastructure) for securing credit and debit card transactions.
Despite widespread use in North America, there are still a large number of countries such as China, India and Pakistan that have some problems to overcome in regard to credit card security. In the meantime, the use of smartcards has become extremely popular. A Smartcard is similar to a credit card; however it contains an embedded 8-bit microprocessor and uses electronic cash which transfers from the consumers’ card to the sellers’ device. A popular smartcard initiative is the VISA Smartcard. Using the VISA Smartcard you can transfer electronic cash to your card from your bank account, and you can then use your card at various retailers and on the internet.
There are companies that enable financial transactions to transpire over the internet, such as PayPal. Many of the mediaries permit consumers to establish an account quickly, and to transfer funds into their on-line accounts from a traditional bank account (typically via ACH transactions), and vice versa, after verification of the consumer's identity and authority to access such bank accounts. Also, the larger mediaries further allow transactions to and from credit card accounts, although such credit card transactions are usually assessed a fee (either to the recipient or the sender) to recoup the transaction fees charged to the mediary.
The speed and simplicity with which cyber-mediary accounts can be established and used have contributed to their widespread use, although the risk of abuse, theft and other problems—with disgruntled users frequently accusing the mediaries themselves of wrongful behavior—is associated with them.

An e-commerce payment system facilitates the acceptance of electronic payment for online transactions. Also known as a sample of Electronic Data Interchange (EDI), e-commerce payment systems have become increasingly popular due to the widespread use of the internet-based shopping and banking.

Methods of online payment

Credit cards constitute a popular method of online payment but can be expensive for the merchant to accept because of transaction fees primarily. Debit cards constitute an excellent alternative with similar security but usually much cheaper charges. Besides card-based payments, other forms of payment have emerged and sometimes even claimed market leadership. Wallets like PayPal and Alipay are playing major roles in the ecosystem. Bitcoin payment processors are a cheaper alternative for accepting payments online which also offer better protection from fraud.
Net banking
This is a system, well known in India, that does not involve any sort of physical card. It is used by customers who have accounts enabled with Internet banking. Instead of entering card details on the purchaser's site, in this system the payment gateway allows one to specify which bank they wish to pay from. Then the user is redirected to the bank's website, where one can authenticate oneself and then approve the payment. Typically there will also be some form of two-factor authentication.
It is typically seen as being safer than using credit cards, with the result that nearly all merchant accounts in India offer it as an option.
A very similar system, known as iDEAL, is popular in the Netherlands.
PayPal
PayPal is a global e-commerce business allowing payments and money transfers to be made through the Internet. Online money transfers serve as electronic alternatives to paying with traditional paper methods, such as cheques and money orders. It is subject to the US economic sanction list and other rules and interventions required by US laws or government. PayPal is an acquirer, a performing payment processing for online vendors, auction sites, and other commercial users, for which it charges a fee. It may also charge a fee for receiving money, proportional to the amount received. The fees depend on the currency used, the payment option used, the country of the sender, the country of the recipient, the amount sent and the recipient's account type. In addition, eBay purchases made by credit card through PayPal may incur extra fees if the buyer and seller use different currencies. On October 3, 2002, PayPal became a wholly owned subsidiary of eBay. Its corporate headquarters are in San Jose, California, United States at eBay's North First Street satellite office campus. The company also has significant operations in Omaha, Scottsdale, Charlotte and Austin in the United States; Chennai in India; Dublin in Ireland; Berlin in Germany; and Tel Aviv in Israel. From July 2007, PayPal has operated across the European Union as a Luxembourg-based bank
Paymentwall
Paymentwall, an e-commerce solutions providing company launched in 2010, offers a wide range of online payment methods that its clients can integrate on their website.
Google Wallet
Google Wallet was launched in 2011, serving a similar function as PayPal to facilitate payments and transfer money online. It also features a security that has not been cracked to date and the ability to send payments as attachments via email.
Mobile Money Wallets
In undeveloped countries the banked population is very less, especially in tier II and tier III cities. Taking the example of India, there are more mobile phone users than there are people with active bank accounts. Telecom operators, in such geographies, have started offering mobile money wallets which allows adding funds easily through their existing mobile subscription number, by visiting physical recharge points close to their homes and offices and converting their cash into mobile wallet currency. This can be used for online transaction and eCommerce purchases. Many payment options such as Airtel Money and M-Pesa are being accepted as alternate payment options on various eCommerce websites.