klassendiagramm.puml

@startuml
title Open Banking Payment - Klassendiagramm

class User {
  +userID: String
  +name: String
  +email: String
  +accounts: List<Account>
}

class Account {
  +accountID: String
  +iban: String
  +bank: String
  +balance: Float
  +transactions: List<Transaction>
}

class Transaction {
  +transactionID: String
  +amount: Float
  +recipient: String
  +status: String
  +executePayment(): Boolean
}

class PaymentService {
  +initiatePayment(amount: Float, recipient: String)
  +getAccountBalance(): Float
}

class BankAPI {
  +authenticateUser(): String
  +fetchAccounts(): List<Account>
  +sendPayment(amount: Float, recipient: String): String
}

User "1" -- "n" Account
Account "1" -- "n" Transaction
PaymentService ..> BankAPI : nutzt
Transaction ..> PaymentService : ruft auf

@enduml