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AAV

See: Accountholder Authentication Value.

Access Control Server

A component of the Issuer Domain. It authenticates a specific card number related to card transactions.

Account Management System (ACM)

Wirecard's central web-based system. It offers merchants the complete functionality necessary to view and manage their payment transactions and Risk Management operations. In addition, it is a management solution for both Wirecard's internal organizations and Payment Service Provider (PSP) operating a customized Wirecard platform. ACM is designed to set up, maintain and manage merchants and their operations across the merchant's life cycle.

Account Receivable

A current asset representing money due for services performed or merchandise sold on credit.

Accountholder

A person holding an account which is charged at a bank or financial instituion.

Accountholder Authentication Value (AAV)

A term used by MasterCard in its 3-D Secure™ authentication process (MasterCard Secure Code). The AAV proves that authentication took place. It is a unique 32-byte value that is generated by the issuer's SPA server for each on-line transaction. It is passed to the merchant via the Universal Cardholder Authentication Field (UCAF) and through the CAVV field.

ACH

See: Automated Clearing House

ACM

See: Account Management System

Acquirer

See: Acquiring Bank, Merchant Bank
A bank or financial institution that is licensed as a Visa/MasterCard member and issues merchant accounts for the acceptance of credit card accounts. The aquirer receives funds from a cardholder when a credit card transaction is completed, and places them  into the merchant's business checking account.

Acquiring Bank

See  Acquirer, Merchant Bank

Acquiring Processor

A processor providing IT services (e.g. credit card processing, billing, reporting, settlement, and operational services) for an Acquirer.

ACS

See: Access Control Server

Address Verification System / Service (AVS)

A payment-related risk check introduced by Visa/Master Card. It compares numerical components of a customer's address (house number and ZIP-code / postal code) to the address registered at the credit card company. Only available in the United States and the UK.

Affiliate

A bank operating in the card business via a principal licensee.

All-in-One Solution

The concept of combining different integrations in one process.

Application Service Provider (ASP)

A third party organization that manages and distributes software-based services and solutions to customers across a wide area network from a central data center.

ASP

Application Service Provider

ATM

See: Automated Teller Machine

Authorization / Preauthorization

Authorization of a credit card payment (reservation of an amount on the credit card).

Automated Clearing House (ACH)

The Automated Clearing House (ACH) Network is a US nationwide electronic payments system used by more than 20,000 participating financial institutions, over 3.5 million corporations, and 130 million consumers. ACH is a method of transferring funds between banks via the Federal Reserve System and is used as a synonym for electronic check processing in the USA.

Automated Teller Machine (ATM)

A money dispensing cash machine typically abbreviated to ATM. A cardholder withdraws funds from his bank account by inserting his plastic card into the machine and entering a PIN (Personal Identification Number).

AVS

See: Address Verification System / Service