SLLC Intermediate study materials
SLLC Intermediate study resources

SLLC Intermediate study plan

SLLC Intermediate · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Supply Chain Strategy and Network Design

  • Map the end-to-end supply chain for one product you know well, labeling nodes, flows, and lead times

  • Differentiate push, pull, and postponement strategies and justify which fits a stated demand profile

  • Compute total landed cost for two sourcing options, including freight, duty, and inventory carrying cost

  • Explain how network decisions (number and location of DCs) trade service level against cost

Your checkpoint

A one-page network diagram of a chosen product with a 150-word strategy justification and a side-by-side landed-cost comparison table

Week 2

Supply Chain Strategy and Network Design & Demand Planning and Forecasting

  • Apply center-of-gravity logic to recommend a warehouse location from a small set of demand points

  • Distinguish forecasting methods (moving average, exponential smoothing, regression) and select one for a given demand pattern

  • Calculate forecast error metrics (MAD, MAPE, bias) from a supplied demand and forecast series

  • Describe how forecast accuracy feeds safety stock and capacity decisions

Your checkpoint

A worked spreadsheet (or handwritten sheet) computing MAD, MAPE, and bias for 12 periods of demand, plus a 100-word method recommendation

Week 3

Demand Planning and Forecasting & Procurement and Supplier Management

  • Build a simple S&OP cycle diagram showing demand review, supply review, and reconciliation steps

  • Evaluate supplier selection criteria (cost, quality, capacity, risk) and rank three suppliers against them

  • Explain the difference between a purchase requisition, PO, and contract in the procure-to-pay flow

  • Identify three supplier performance metrics and how each is measured

Your checkpoint

A weighted supplier scorecard scoring three suppliers across at least five criteria, with a short written recommendation

Week 4

Procurement and Supplier Management & Production Planning and Inventory Control

  • Distinguish strategic, bottleneck, leverage, and routine items using Kraljic-style segmentation

  • Calculate economic order quantity (EOQ) and reorder point from given inputs

  • Explain MRP inputs and outputs and trace how a bill of materials drives component requirements

  • Compare lot-sizing rules (lot-for-lot, fixed order quantity) on total cost

Your checkpoint

A solved problem set: EOQ, reorder point, and a two-level MRP explosion for one parent item, with all arithmetic shown

Week 5

Production Planning and Inventory Control & Warehousing and Materials Handling

  • Compute safety stock for a target service level using demand and lead-time variability

  • Classify an item list using ABC analysis and state the control policy for each class

  • Compare storage and handling systems (selective rack, flow rack, AS/RS) against product and throughput needs

  • Explain slotting logic and its effect on pick travel time

Your checkpoint

An ABC classification table for 20 SKUs plus a one-page layout recommendation stating racking type and slotting rules

Week 6

Transportation and Distribution Management & Logistics Operations and Customer Service

  • Compare truckload, LTL, intermodal, and parcel on cost, transit time, and shipment size fit

  • Calculate freight cost and cost per unit for two shipment consolidation scenarios

  • Explain Incoterms responsibilities for risk transfer and cost at a named point

  • Define order cycle time and perfect order rate and compute both from sample data

Your checkpoint

A mode-selection matrix for three shipment profiles plus computed perfect order rate and order cycle time from a 10-order sample

Week 7

Logistics Operations and Customer Service & Supply Chain Technology and Data Analytics

  • Map a customer order from receipt to delivery and flag two service failure points

  • Describe how WMS, TMS, and ERP systems share data across the order-to-cash flow

  • Interpret a dashboard of KPIs (fill rate, OTIF, inventory turns) and state one corrective action each

  • Explain data quality risks in supply chain analytics and how to mitigate them

Your checkpoint

A KPI dashboard mock-up with at least six metrics, benchmark targets, and a 150-word action note per flagged metric

Week 8

Risk, Sustainability, and Compliance & Supply Chain Strategy and Network Design & Production Planning and Inventory Control

  • Identify supply chain risks by likelihood and impact and propose a mitigation for each

  • Explain scope 3 emissions and one practical way to measure them in a supply chain

  • Summarize key compliance considerations (customs documentation, product safety, sanctions screening)

  • Synthesize all domains into a single integrated review outline and self-test on weak areas

Your checkpoint

A risk register with at least eight risks (likelihood, impact, mitigation) plus a one-page integrated review sheet covering all nine domains

Milestones

Week 2: Can explain network design trade-offs and compute MAD, MAPE, and bias without notes; scored at least 70% on a 20-question self-quiz covering domains 1 and 2

Week 4: Can complete an EOQ, reorder point, and two-level MRP explosion problem cold in under 25 minutes, and can justify a supplier selection decision in writing

Week 6: Can select a transport mode for a given shipment profile with stated reasoning and compute perfect order rate correctly from raw order data

Week 8: Completed a full-length timed practice set across all nine domains, scoring at least 75%, with every missed item logged and reviewed