Last Mile Delivery Service - Business Capabilities

Service Overview: The Last Mile Delivery Service manages final-stage delivery operations including route optimization, driver management, real-time tracking, proof of delivery, and customer communication for direct-to-consumer fulfillment.

Architecture: Microservices with Mobile Integration Technology Stack: Spring Boot 3.2, PostgreSQL, MongoDB, Redis, Apache Kafka, Mobile SDKs Domain Model: Route-based aggregates with real-time location tracking

L1: Last Mile Excellence

L1.1: Strategic Value

• Delivery Success Rate: 98%+ first-attempt delivery success
• Cost Efficiency: 20% reduction in delivery costs via route optimization
• Customer Satisfaction: 4.5+ star average delivery rating
• Speed: 2-hour delivery windows with 95% on-time performance

L2: Core Capabilities

L2.1: Route Optimization & Planning

• Dynamic route optimization (vehicle routing problem solver)
• Multi-stop sequencing with time windows
• Traffic and weather integration
• Capacity constraint management (weight, volume, units)

L2.2: Driver Management

• Driver assignment and scheduling
• Mobile app for turn-by-turn navigation
• Performance tracking and scoring
• Real-time communication with dispatch

L2.3: Delivery Execution & Tracking

• Real-time GPS tracking and ETA updates
• Customer notification (SMS, email, push)
• Proof of delivery (signature, photo, geofence)
• Failed delivery handling and rescheduling

L2.4: Exception Management

• Address validation and correction
• Access issue handling (gate codes, building entry)
• Customer unavailability workflows
• Safe drop authorization

Key Metrics

• First-attempt success rate: 98%
• On-time delivery rate: 95%
• Average stops per route: 80-120
• Customer NPS score: 70+

Performance Targets

• Route optimization: < 60 seconds
• ETA calculation: < 500ms
• Location update frequency: every 30 seconds
• System availability: 99.95%