Payment Gateway subcomponents

The Payment Gateway is composed of several subdomains (AKA bounded contexts in DDD lingo), each matching a Modular Monolith Subcomponent ⧉:

• Accounts ⧉: Payment accounts issued by external PSPs
• Authorizations ⧉: Real-time authorization of payments made with issued cards
• Banking Documents ⧉: SEPA mandates and other legal documents
• Cards ⧉: Payment cards issued by external PSPs
• Ledgers ⧉: Ledgers and balances
• Merchants ⧉: Merchant registry from payments made with issued cards
• Parties ⧉: Legal Entitites and Financial Instruments involved in payment operations
• Payments ⧉: Payment operations made through our platform
• Rules ⧉: Transaction rules on payment cards and accounts
• Transfers ⧉: Financial transfers occurring on our platform and external PSPs