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Class Diagram Updated 7/12/2026

Payment Gateway — Strategy Pattern

Class diagram of a payment system using the Strategy pattern: OrderService calls PaymentProcessor, which delegates to a PaymentGateway interface implemented by StripeGateway and PayPalGateway.

strategy patternclass diagrampayment gatewaystripepaypal
5 nodes 4 connections

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class diagramlibrary systemumlloans and holdsfines and paymentsnotifications
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