Actors / Abbreviations

Name	Description
Merchant	The Aera customer using the Wallets SDK in their DPA
Consumer	The end-user of the DPA. The Identity linked to a specific wallet. Owner of various payment instruments.
DPA	Digital Payment Application: The merchant mobile app
DPA BE	The back-end of the DPA. Communicating with DPA and WSP.
PSP	Payment Service Provider: A service accepting electronic payments, in this regard supporting WLW payments. PSP acts as intermediaries between those who make payments (consumers) and those who accept them (merchants/retailers).
WSP	Wallet Service Provider: Providing a wallet solution to different DPAs. Responsible for communicating with WLW.
Wallet SDK	Android and iOS SDK integrated as part of the DPA, to simplify and secure communication with WLW.
WLW	White Label Wallet: A secure wallet customizable by the WSP, enabling connections to various PPS (Participating Payment System)
PPS	Payment Participating System is the types/schemes of payment instruments that can added to the wallet. E.g. Visa, MasterCard, BankAxept, Aera Account, Vouchers (Monizze, Edenred, Pluxee), and more …
JSON	JavaScript Object Notation is an open-standard file format that use human-readable text to transmit data objects consisting of attribute-value pairs an array data types ( or any other serialisable value). Derived from JavaScript JSON is a language-independent data format
RESTful API	An application program interface (API) that uses HTTP requests to GET, PUT, POST and DELETE data. Sometimes also referred to as a RESTful web service — it is based on representational state transfer (REST) technology, an architectural style and approach to communications often used in web services development.
SDK	Standard Developer Kit
UTF-8	8-bit Unicode Transformation Format is a character encoding capable of encoding all 1,112,064 valid code points in Unicode using one to four 8-bit bytes