Pick Execution Service - Business Capabilities

Service Overview: The Pick Execution Service manages the execution of picking operations across multiple picking strategies (single, batch, zone, wave) with real-time guidance, path optimization, and inventory accuracy tracking.

Architecture: Hexagonal Architecture (Ports & Adapters) Technology Stack: Spring Boot 3.2, MongoDB, Redis, Apache Kafka Domain Model: Strategy pattern for picking methods with event-driven execution

L1: Pick Execution & Optimization

L1.1: Strategic Value

• Efficiency: 35% reduction in pick time through optimized routing
• Accuracy: 99.8% pick accuracy with real-time verification
• Flexibility: Support for 4+ picking strategies
• Throughput: Handle 500+ picks per hour per worker

L2: Core Capabilities

L2.1: Picking Strategy Management

• Single order picking for high-priority items
• Batch picking for efficiency (up to 20 orders)
• Zone picking for large warehouses
• Wave picking for peak periods

L2.2: Path Optimization

• Dynamic routing algorithms based on warehouse layout
• Shortest path calculation considering obstacles
• Multi-stop optimization for batch picks
• Real-time path recalculation

L2.3: Pick Verification & Validation

• Barcode scanning validation
• Quantity verification with weight checks
• Short pick handling and exception management
• Quality gate integration

L2.4: Guided Picking Execution

• Mobile device integration (RF, tablet, voice)
• Step-by-step picking instructions
• Visual location guidance
• Real-time progress tracking

Key Metrics

• Pick accuracy rate: 99.8%
• Average picks per hour: 120-150
• Short pick rate: < 1%
• Path optimization efficiency: 85%

Performance Targets

• Pick task acknowledgment: < 200ms
• Path calculation: < 500ms
• Verification processing: < 300ms
• System availability: 99.95%