SLAM Operations Service - Business Capabilities

Overview

The SLAM (Scan, Label, Apply, Manifest) Operations Service manages the final quality gate before packages are handed off to transportation carriers. It processes all packages regardless of which path they came from.

Business Capabilities

1. Package Scanning

Purpose: Verify package identity through barcode scanning.

2. Weight Verification

Purpose: Validate package weight against expected values.

Weight Verification Rules

flowchart TD
    A[Weigh Package] --> B{Variance Check}
    B -->|≤10%| C[PASS - Continue]
    B -->|10-25%| D[FLAG - Manager Review]
    B -->|>25%| E[FAIL - Problem Solve]
    D -->|Approved| C
    D -->|Rejected| E

3. Carrier Selection

Purpose: Select optimal carrier and service level.

4. Label Generation

Purpose: Generate shipping labels with tracking information.

Label Generation Workflow

sequenceDiagram
    participant SLAM as SLAM Service
    participant CARRIER as Carrier API
    participant PRINTER as Label Printer

    SLAM->>CARRIER: Request tracking number
    CARRIER-->>SLAM: Tracking: 1Z999...
    SLAM->>SLAM: Generate label content
    SLAM->>PRINTER: Print label
    PRINTER-->>SLAM: Print confirmed

5. Label Application

Purpose: Apply and verify label placement.

6. Manifest Recording

Purpose: Record packages to carrier manifests.

7. Exception Handling

Purpose: Handle exceptions during SLAM processing.

Exception States

stateDiagram-v2
    [*] --> PROCESSING
    PROCESSING --> WEIGHT_EXCEPTION: weight_fail
    PROCESSING --> LABEL_EXCEPTION: label_fail
    PROCESSING --> CARRIER_EXCEPTION: carrier_fail

    WEIGHT_EXCEPTION --> RESOLVED: fixed
    LABEL_EXCEPTION --> RESOLVED: fixed
    CARRIER_EXCEPTION --> RESOLVED: fixed

    WEIGHT_EXCEPTION --> DIVERTED: cannot_fix
    LABEL_EXCEPTION --> DIVERTED: cannot_fix
    CARRIER_EXCEPTION --> DIVERTED: cannot_fix

    RESOLVED --> PROCESSING: retry

SLAM Session Workflow

sequenceDiagram
    participant PATH as Path Services
    participant SLAM as SLAM Session
    participant SCALE as Scale
    participant CARRIER as Carrier API
    participant PRINTER as Printer
    participant MANIFEST as Manifest

    PATH->>SLAM: Pack Completed Event
    SLAM->>SLAM: Create session

    SLAM->>SCALE: Request weight
    SCALE-->>SLAM: Actual weight
    SLAM->>SLAM: Verify weight

    SLAM->>CARRIER: Request label
    CARRIER-->>SLAM: Tracking + routing
    SLAM->>PRINTER: Print label
    PRINTER-->>SLAM: Applied

    SLAM->>MANIFEST: Add to manifest
    SLAM-->>PATH: SLAMCompletedEvent

Integration Points

Upstream

Downstream

Key Performance Indicators

Technology Stack

References

• DDD Documentation
• Process Path Overview
• Pack & Ship Integration