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📘 Why do supply chains whip?

A supply chain comprises all parties involved, directly or indirectly, in fulfilling a customer request: suppliers, manufacturers,

6
lessons
~30 min
to learn
Adults
level
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What you’ll learn

  1. What a Supply Chain Is and Why It ExistsDefine the supply chain as an end-to-end flow of materials, information, and cash, and explain why managing it as a system is an operations problem.A supply chain is the network of organizations and processes that moves a product from raw materials to the end customer, coordinated through three intertwined flows: material, information, and cash. Operations management treats this network as a single system rather than a set of isolated functions, because local optimization at one stage frequently degrades performance of the whole. Understanding the flows and stages gives you the vocabulary to diagnose where cost, time, and risk accumulate. This framing sets up the rest of the course, which gives you tools to analyze and improve a real chain.
  2. Mapping the Chain with the SCOR Process FrameworkUse the SCOR version 12.0 process categories (Plan, Source, Make, Deliver, Return, Enable) to decompose any supply chain into analyzable, standardized processes.The Supply Chain Operations Reference (SCOR) framework, originally developed by the Supply Chain Council and now maintained by ASCM, gives operations professionals a common vocabulary by decomposing a chain into standardized process types. This lesson uses the widely taught SCOR version 12.0 structure of six top-level process types: Plan, Source, Make, Deliver, Return, and Enable. Because the categories are industry-agnostic, they let you map and benchmark very different businesses with the same model. (ASCM has since published the SCOR Digital Standard, which reorganizes the model into the processes Orchestrate, Plan, Order, Source, Transform, Fulfill, and Return; the six-category vocabulary here remains the most common entry point and maps cleanly onto the newer scheme.) In this guided project you will use SCOR as the skeleton for your artifact map, classifying each real activity into one of the six categories. Standardized processes are the precondition for measuring performance consistently, which is the focus of the next lesson.
  3. Measuring Performance: SCOR Attributes and Inventory Trade-offsApply SCOR performance attributes and core inventory metrics to quantify how a supply chain performs and where its key trade-offs lie.You cannot improve a chain you have not measured, so this lesson introduces the five SCOR performance attributes (reliability, responsiveness, agility, cost, and asset management efficiency) and the standard metrics tied to each. It then drills into inventory, the most visible operational lever, covering the EOQ trade-off, the cycle/safety stock distinction, and cash-to-cash cycle time. These metrics make the central tension of operations explicit: service and responsiveness usually cost more inventory and cash. With these tools you can attach numbers to the process map you built in the prior lesson.
  4. Coordination Failures: The Bullwhip EffectExplain the bullwhip effect, identify its operational causes, and select countermeasures that reduce demand distortion across a supply chain.The bullwhip effect is the amplification of order variability as you move upstream from the customer toward suppliers, first popularized through observations at Procter & Gamble and analyzed by Lee, Padmanabhan, and Whang. Crucially, it arises from rational local decisions within the existing chain structure, not from irrational managers, which is why it is so persistent. The lesson identifies its main causes, demand-signal processing, order batching, price fluctuation, and rationing/shortage gaming, and pairs each with a concrete countermeasure. Recognizing bullwhip in your own artifact's data is a key analytical skill assessed later.
  5. Strategy, Risk, and Cross-Border SourcingMatch supply chain design to product and demand characteristics, and evaluate sourcing, resilience, and contractual choices including Incoterms.Operational tools only pay off if the chain's overall design fits the product, which is the heart of Fisher's framework distinguishing functional from innovative products and efficient from responsive supply chains. This lesson layers in the structural tension between efficiency and resilience, the make-versus-buy and single-versus-multi-sourcing decisions, and the role of Incoterms in defining who bears cost and risk across borders. Together these strategic choices shape every metric you measured earlier. They also frame the design rationale you will defend in your portfolio artifact.
  6. Guided Project: Build and Analyze a Supply Chain ArtifactSynthesize the course by mapping a real product's supply chain with SCOR, computing key metrics, diagnosing a coordination problem, and recommending an aligned improvement.This capstone walks you step by step through building the portfolio artifact: a documented map and analysis of one real product's supply chain. You will apply SCOR to map processes, compute a small set of metrics (including an EOQ and one SCOR attribute), diagnose at least one issue such as a bullwhip cause or strategy mismatch, and recommend a change justified against the efficiency-resilience and Fisher frameworks. Each clip is a build step with concrete, accurate guidance and no fabricated data; you supply real figures or clearly labeled assumptions. The result is a defensible, evidence-based artifact suitable for your Business and Entrepreneurship capstone portfolio.

Questions this course answers

Which set best describes the three flows that supply chain management coordinates?

Supply chains coordinate the flow of materials/product (downstream), information (bidirectional), and cash/payments (upstream). The other options name functions, facilities, or process types rather than the flows themselves.

A purchasing manager buys in very large batches to get the lowest unit price, but warehouse and obsolescence costs rise sharply. This illustrates which principle?

Minimizing one function's metric (unit price) raised costs elsewhere, lowering total supply chain performance. This is the classic argument for managing total cost at the system level rather than optimizing each node in isolation.

In supply chain terminology, a 'Tier-2 supplier' is best defined as a firm that:

Tiers describe position relative to the focal firm: Tier-1 ships directly to the focal firm, and Tier-2 ships to the Tier-1. 'Tier' refers to network position, not to quality grade.

Which of the following is the complete set of SCOR top-level process types?

SCOR defines six top-level processes: Plan, Source, Make, Deliver, Return, and Enable. The other lists mix in PDCA, the marketing mix, or invented terms that are not SCOR categories.

A company sets business rules, manages supply chain data, and oversees supplier contracts and compliance. In SCOR these activities map to which process?

Enable covers processes associated with managing the supply chain itself, such as business rules, data, performance management, contracts, and compliance. Make, Deliver, and Source describe operational, not governance, activity.

Handling defective units flowing backward from the customer for repair or credit falls under which SCOR process?

Return covers products moving backward through the chain for any reason, including defects, and extends into post-delivery support. Source procures inputs, Make transforms them, and Plan balances demand and supply.

Grounded in trusted sources

  • Sunil Chopra and Peter Meindl, Supply Chain Management: Strategy, Planning, and Operation (Pearson) — bullwhip, inventory, SCOR framing
  • APICS / ASCM, SCOR Digital Standard — process framework reference, https://www.ascm.org/corporate-solutions/standards-tools/scor-ds/
  • Hau L. Lee, V. Padmanabhan, and Seungjin Whang, “The Bullwhip Effect in Supply Chains,” Sloan Management Review / related research
  • MIT Center for Transportation & Logistics, Supply chain primers and bullwhip teaching notes, https://ctl.mit.edu/
  • OECD, Global value chains and trade — cross-border sourcing context, https://www.oecd.org/trade/topics/global-value-chains-and-trade/

Every Wunder lesson is built from real, reputable sources — never invented.

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