This curriculum spans the technical and operational rigor of a multi-phase inventory optimization initiative, comparable to an internal capability program that integrates forecasting, policy design, and system governance across a global service parts network.
Module 1: Foundations of Service Parts Inventory and Demand Characteristics
- Selecting between intermittent, lumpy, and continuous demand classification models based on historical part usage patterns and repair cycle frequency.
- Defining minimum order quantities (MOQs) in coordination with suppliers while balancing inventory carrying costs and service level targets.
- Implementing demand history cleansing rules to exclude one-time spikes, obsolescence periods, or non-recurring field campaigns.
- Deciding whether to aggregate demand at the part-location level or maintain granular serial-level tracking based on traceability requirements.
- Establishing rules for handling zero-demand periods—determining when to classify a part as dormant versus active with low utilization.
- Integrating engineering change orders (ECOs) into demand forecasting logic to phase out legacy parts and introduce new variants.
Module 2: Forecasting Techniques for Intermittent Demand
- Choosing between Croston’s method, SBA (Syntetos-Boylan Approximation), and TSB (Teunter-Syntetos-Babai) based on demand intermittency and obsolescence risk.
- Configuring forecast smoothing parameters (alpha, beta) using in-sample fit diagnostics while avoiding overfitting to noise.
- Implementing forecast overrides with audit trails when expert judgment or known field events contradict statistical outputs.
- Validating forecast accuracy using period-specific error metrics (e.g., MAD, MAPE) adjusted for intermittent demand bias.
- Handling spare parts with short lifecycles by integrating product phase-in/phase-out dates into forecast models.
- Designing forecast reconciliation processes across hierarchical levels (e.g., part family, equipment model, region).
Module 3: Inventory Policy Configuration and Stocking Strategies
- Selecting between min/max, reorder point (ROP), and periodic review systems based on supplier lead time variability and ordering constraints.
- Setting service level targets per part criticality (A/B/C classification) while aligning with SLA commitments and downtime cost data.
- Calculating safety stock levels using lead time demand distributions, considering non-normality and censored data.
- Implementing multi-echelon inventory policies that differentiate stocking rules between central depots and field warehouses.
- Adjusting policy parameters dynamically in response to changes in equipment fleet size or operational intensity.
- Managing consignment inventory agreements by defining ownership transfer triggers and monitoring consumption thresholds.
Module 4: Lead Time Modeling and Supplier Performance Integration
- Segmenting suppliers by lead time reliability and incorporating probabilistic lead time distributions into inventory models.
- Validating supplier-reported lead times against actual inbound shipment data to correct systemic biases.
- Establishing lead time safety factors for expedited versus standard procurement channels.
- Integrating supplier quality defect rates into effective lead time calculations to account for rework cycles.
- Designing dual-sourcing strategies with lead time differentials and activation rules during supply disruptions.
- Automating lead time updates from supplier portals or EDI feeds while implementing exception handling for missing data.
Module 5: Multi-Echelon Inventory Optimization (MEIO)
- Mapping network topology to define echelon levels, including central warehouses, regional hubs, and mobile technicians.
- Allocating inventory investment across echelons using marginal analysis to maximize system-wide service levels.
- Implementing push vs. pull replenishment logic at different echelons based on demand predictability and transportation frequency.
- Configuring lateral transshipment rules between peer locations with cost, authorization, and availability checks.
- Modeling repair loops in MEIO by tracking repairable assets through failure, shipment, and refurbishment stages.
- Updating echelon stock positions in real time using warehouse management system (WMS) transaction feeds.
Module 6: Scheduling Replenishment and Order Release Processes
- Sequencing purchase order releases to align with supplier production cycles and minimize changeover costs.
- Coordinating batch ordering across multiple parts to achieve freight consolidation without increasing stockouts.
- Implementing time-phased order rescheduling logic to respond to supply delays or sudden demand surges.
- Integrating material requirements from preventive maintenance schedules into procurement planning cycles.
- Defining order expediting protocols with clear thresholds based on remaining stock and lead time exposure.
- Validating order feasibility against available budget, supplier capacity, and contract terms before release.
Module 7: Performance Monitoring and Continuous Improvement
- Designing KPI dashboards that track inventory turnover, stockout frequency, and service level attainment by part category.
- Conducting root cause analysis on chronic stockouts or excess inventory using drill-down to transaction logs and policy settings.
- Calibrating inventory models quarterly using actual performance data and adjusting assumptions for demand or lead time shifts.
- Implementing ABC-XYZ classification reviews to reassign parts based on changing usage and predictability patterns.
- Establishing cross-functional review meetings between supply chain, service operations, and finance to resolve policy conflicts.
- Documenting model changes and policy updates in a controlled change log to support audit and compliance requirements.
Module 8: System Integration and Data Governance
- Mapping master data fields between ERP, EAM, and inventory optimization platforms to ensure part, location, and bill-of-materials consistency.
- Designing automated data validation routines to detect and quarantine records with missing lead times or incorrect unit of measure.
- Implementing role-based access controls for inventory parameter changes to prevent unauthorized overrides.
- Configuring data refresh schedules between transactional systems and analytical models to balance timeliness and system load.
- Resolving discrepancies between physical inventory counts and system records through cycle count adjustment workflows.
- Establishing data retention policies for demand history, audit trails, and forecast versions to support regulatory and operational needs.