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Last-Mile Delivery Shipment Tracking State Machine Pipeline
A medium Pipeline Design interview practice problem on DataDriven. Write and execute real pipeline design code with instant grading.
- Domain
- Pipeline Design
- Difficulty
- medium
- Seniority
- senior
Problem
We're a logistics company delivering parcels across 18,000 pin codes in India, and every scan at a warehouse, vehicle, or delivery point is a tracking event. Our customers expect real-time shipment status, and our ops team needs to know when parcels are stuck or moving in the wrong direction. The problem is that scan events arrive out of order - a parcel can be scanned at delivery before we've received the confirmation it left the origin hub. Design a pipeline that maintains accurate shipment state despite these ordering issues.
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