Terminology
Explanation of frequently repeated terms.
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Abbreviation
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Description
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PSD2
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Payment Service Directive. The European Payment Service Directive defining third party access rules
for bank clients' accounts.
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SBAS
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Slovak Banking API Standard.
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TPP
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Third Party Provider. Third party service provider in the PSD2 context. This is a specific merchant
who provides one of the defined services. The document also includes the name as "subject".
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STATUS
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The current state of the subject in the bank. There are five different states (unregistered,
registration request, registered, unregistered, blocked).
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SCOPE
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Operations regarding client's account. It is divided into three areas - PISP, AISP, PIISP
(abbreviation under SBAS methodology).
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AISP
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Account Information Service Providers. A service that allows authorized third-party access to a
client's bank account summary, including balance information on the account.
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PISP
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Payment Initiation Service Providers. Possibility to initiate a payment order from a client's bank
account without having access to the bank's internet banking.
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PIISP
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Payment Instrument Issuer Service Providers. A service that allows you to query whether the status of
the funds on the client's account is enough to make certain payments. YES / NO is sent as a response to
the question.
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API
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Application Programming Interface. Interfaces issued by a bank to allow third parties access to their
clients' accounts. Using the API, third parties will register with the bank, access accounts, and
execute payment operations. The adopted Berlin standard defines the requirements for the form of this
interface and the way of security and verification.
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Resource
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Resource is addressable by URI (Uniform Resource Identifier).
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IBAN
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International Bank Account Number.
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PSU
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Payment Service User.
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PSD2 IS
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Identity Server.
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PSD2 API
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API services.
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