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E-commerce Shipping System

Imagine you need to design a shipping system for an e-commerce platform that supports multiple delivery methods (like standard shipping, express delivery, and pickup). The system should allow users to calculate shipping costs, track shipments in real-time, and manage schedules for deliveries. Discuss how you would handle changes in shipping rates and potential extensions for new shipping methods.

Key concepts

oopdesign patternsextensibility

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