--- name: kanban-system-designer description: Pull-based production control system design skill with WIP limits, replenishment triggers, and visual management boards allowed-tools: - Read - Write - Glob - Grep - Edit metadata: specialization: operations domain: business category: lean-operations --- # Kanban System Designer ## Overview The Kanban System Designer skill provides comprehensive capabilities for designing and implementing pull-based production control systems. It supports kanban sizing, WIP limit determination, supermarket design, and electronic kanban configuration for efficient material flow. ## Capabilities - Kanban sizing calculation - WIP limit determination - Supermarket design - Signal mechanism configuration - Pull system simulation - Heijunka box design - Electronic kanban (e-kanban) configuration ## Used By Processes - LEAN-004: Kanban System Design - TOC-002: Drum-Buffer-Rope Scheduling - CAP-002: Production Scheduling Optimization ## Tools and Libraries - Kanban software APIs - Inventory management systems - Simulation tools - Visual board platforms ## Usage ```yaml skill: kanban-system-designer inputs: product_family: "Widget Assembly" demand_data: average_daily: 500 peak_daily: 750 variability: "medium" lead_time_data: replenishment_time: "4 hours" safety_factor: 1.5 container_size: 50 outputs: - kanban_quantity_calculation - supermarket_layout - signal_card_design - wip_limits - implementation_plan ``` ## Workflow 1. **Analyze Demand** - Review historical demand patterns and variability 2. **Calculate Kanban** - Determine number of kanbans needed 3. **Design Signals** - Create visual or electronic signal mechanisms 4. **Set WIP Limits** - Establish limits for each process step 5. **Configure Supermarkets** - Design inventory storage points 6. **Implement and Tune** - Deploy system and adjust parameters ## Kanban Calculation Formula ``` Number of Kanbans = (Daily Demand x Lead Time x Safety Factor) / Container Size Where: - Daily Demand = Average units consumed per day - Lead Time = Time to replenish (in days) - Safety Factor = Buffer for variability (typically 1.0-2.0) - Container Size = Units per kanban container ``` ## Integration Points - ERP/MRP systems - Manufacturing Execution Systems - Inventory management platforms - Visual management displays