Mobile payment, also referred to as mobile money, mobile money transfer and mobile wallet, is any of various payment processing services operated under financial regulations and performed from or via a mobile device. Instead of paying with cash, cheque, or credit card, a consumer can use a payment app on a mobile device to pay for a wide range of services and digital or hard goods. Although the concept of using non-coin-based currency systems has a long history, it is only in the 21st century that the technology to support such systems has become widely available.
Digital currency is any currency, money, or money-like asset that is primarily managed, stored or exchanged on digital computer systems, especially over the internet. Types of digital currencies include cryptocurrency, virtual currency and central bank digital currency. Digital currency may be recorded on a distributed database on the internet, a centralized electronic computer database owned by a company or bank, within digital files or even on a stored-value card.
A payment system is any system used to settle financial transactions through the transfer of monetary value. This includes the institutions, payment instruments such as payment cards, people, rules, procedures, standards, and technologies that make its exchange possible. A payment system is an operational network which links bank accounts and provides for monetary exchange using bank deposits. Some payment systems also include credit mechanisms, which are essentially a different aspect of payment.
The Single Euro Payments Area (SEPA) is a payment integration initiative of the European Union for simplification of bank transfers denominated in euros. As of 2020, there were 36 members in SEPA, consisting of the 27 member states of the European Union, the four member states of the European Free Trade Association, and the United Kingdom. Some microstates participate in the technical schemes: Andorra, Monaco, San Marino, and Vatican City.
Network for Electronic Transfers, colloquially known as NETS, is a Singaporean electronic payment service provider. Founded in 1986 by a consortium of local banks, it aims to establish the debit network and drive the adoption of electronic payments in Singapore. It is owned by DBS Bank, OCBC Bank and United Overseas Bank (UOB).
A digital wallet, also known as an e-wallet or mobile wallet, is an electronic device, online service, or software program that allows one party to make electronic transactions with another party bartering digital currency units for goods and services. This can include purchasing items either online or at the point of sale in a brick and mortar store, using either mobile payment or using a laptop or other personal computer. Money can be deposited in the digital wallet prior to any transactions or, in other cases, an individual's bank account can be linked to the digital wallet. Users might also have their driver's license, health card, loyalty card(s) and other ID documents stored within the wallet. The credentials can be passed to a merchant's terminal wirelessly via near field communication (NFC).
TARGET2-Securities, in shorthand T2S, is the Eurosystem's platform for securities settlement in central bank money. T2S offers centralised delivery-versus-payment (DvP) settlement across several European securities markets, without being itself a central securities depository (CSD) since it does not offer CSD services such as custody or asset servicing.
The Euro Alliance of Payment Schemes (EAPS) was an international alliance of European bank and interbank networks that had aimed to creating a pan-European debit card system in the Single Euro Payments Area to rival Visa and Mastercard using existing country specific systems. It was launched in 2007 with the support of the European Union but failed and was abandoned sometime after 2013.
iDEAL is an e-commerce payment system used for online banking in the Netherlands. Previously controlled by the Dutch e-commerce organization Currence since 2006, the company became owned by the European Payments Initiative (EPI) from October 2023.
Giropay was an Internet payment system in Germany, based on online banking. Introduced in February 2006, this payment method allowed customers to buy securely on the Internet using direct online transfers from their bank account. The system was similar to the Dutch iDEAL payment system, MyBank payment system, the Interac online service in Canada, pagomiscuentas payment service in Argentina, and Secure Vault Payments in the United States.
Currence is a Dutch trade association set up by banks that coordinates the payment systems in the Netherlands. Its aim is to "facilitate and provide market transparency while maintaining the quality and safety of the payment systems of the Netherlands."
Payments as a service (PaaS) is a marketing phrase used to describe software as a service to connect a group of international payment systems. The architecture is represented by a layer – or overlay – that resides on top of these disparate systems and provides for two-way communications between the payment system and the PaaS. Communication is governed by standard APIs created by the PaaS provider.
EBA Clearing is a provider of pan-European payment infrastructure wholly owned by shareholders that consist of major European banks. It derives its name from the Euro Banking Association which was instrumental in its establishment in June 1998, but has always been a separate organization.
"Fintech", a clipped compound of "financial technology", refers to the application of innovative technologies to products and services in the financial industry. This broad term encompasses a wide array of technological advancements in financial services, including mobile banking, online lending platforms, digital payment systems, robo-advisors, and blockchain-based applications such as cryptocurrencies. Fintech companies include both startups and established technology and financial firms that aim to improve, complement, or replace traditional financial services.
SIA S.p.A. is an Italian company operating in the area of ICT, providing services to the banking and finance sector in addition to platforms for financial markets and e-payment services.
A central bank digital currency is a digital currency issued by a central bank, rather than by a commercial bank. It is also a liability of the central bank, unless it is dividend-paying, then it is an ownership stake in the central bank, and is a new form of legal tender, unlike regular retail CBDC which is denominated in the sovereign currency, as is the case with physical banknotes, coin and existing reserves.
PayconiqInternational S.A. is a Luxembourg-based company developing a mobile payment and payment processing platform, active in Luxembourg and Belgium. Since October 2023, it has been controlled by The European Payments Initiative (EPI).
A QR code payment is a mobile payment method where payment is performed by scanning a QR code from a mobile app. This is an alternative to doing electronic funds transfer at point of sale using a payment terminal. This avoids a lot of the infrastructure traditionally associated with electronic payments such as payment cards, payment networks, payment terminal and merchant accounts.
The STET-CORE system is a French interbank automated clearing house that has been designated as a Systemically Important Payment System at the European level. The system's operating company is STET SA, based in Paris La Défense, whose name refers to Systèmes Technologiques d'Echange et de Traitement.
Wero is a European mobile payment system intended to replace Giropay in Germany, Paylib in France, Payconiq in Belgium and Luxembourg and iDEAL in The Netherlands. The service was launched on 2 July 2024 by the European Payments Initiative. The service intends to compete with PayPal and similar services, beginning as a real-time payment system and later with extended online payment function.
Single Euro Payments Area 
