ISO 20022 provides the modelling method, business concepts and repository used to create structured financial messages. Payment and other financial-service message families build on that platform, with schemes and market-practice profiles defining how the messages are implemented.
TL;DR:
- ISO 20022 provides a methodology and repository for financial messages.
- Business concepts and message definitions span payments and other domains.
- Message versions and local usage guidelines determine implementation.
Summary
Common modelling approach
ISO 20022 is a multipart financial-services standard and a common method for modelling business concepts and deriving message definitions. It is broader than a particular XML file format.
Repository and domains
The official repository organises business and message information across payments, securities, trade finance, cards and foreign exchange. Reusable definitions support consistent meaning for parties, accounts, amounts and other financial data.
Implementation layers
An operational payment system selects message definitions and versions and applies its own usage guidelines. Those rules can narrow optional fields or require information for a particular business process. Schema validity alone does not establish compliance with every usage rule.
Release and operating scope
The repository also supplies supporting material such as headers and external code sets. A version-specific implementation claim needs the actual message set and profile. ISO 20022 adoption does not by itself establish participation, settlement finality or complete interoperability between payment systems.
Keywords
- ISO 20022
- Business Model
- Message Definitions
- Data Dictionary
- Payments
- Securities
- Trade Finance
- Business Semantics
- Usage Guidelines
- External Codes