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Mastering your Supply Chain Management (SCM) midterm requires moving beyond simple definitions to understanding how materials, information, and financials flow together to meet customer demand. Midterm Study Guide: Key Concepts & Common Questions
A standard SCM midterm typically covers foundational topics such as inventory management, forecasting, and strategic sourcing. 1. Core Definitions & Strategy
What is SCM? The integration of activities from raw material extraction to final customer delivery, connected by transportation and storage.
Primary Goal: To improve customer satisfaction while reducing operating expenses and inventory investment.
Strategic Fit: How a company aligns its supply chain capabilities (e.g., responsiveness vs. efficiency) with its competitive strategy. 2. Inventory Management
ABC Analysis: A method for categorizing inventory based on consumption value (Price × Volume) to prioritize management resources.
Economic Order Quantity (EOQ): The ideal order size that minimizes total inventory costs, including holding and ordering costs.
Safety Stock: The extra inventory held to protect against demand uncertainty or supply disruptions. 3. Demand Planning & Forecasting
The Bullwhip Effect: The phenomenon where small fluctuations in customer demand cause increasingly larger variations in orders as you move upstream toward suppliers.
Qualitative vs. Quantitative Forecasting: Midterms often ask you to distinguish between human-judgment methods (market research) and mathematical models (time-series analysis). 4. Logistics & Sourcing
Third-Party Logistics (3PL): Providers used to manage standard transportation and logistics functions.
Push vs. Pull Models: Understanding the difference between making products based on forecasts (Push) versus making them based on actual customer orders (Pull). Quick Practice: Test Your Knowledge
Multiple Choice: Which concept describes the amplification of demand fluctuations as one moves further from the customer? A) Bullwhip Effect | B) Safety Stock | C) ABC Analysis Answer: A.
True/False: Economies of scale refers to an increase in average unit cost as volume increases. Answer: False. It refers to a reduction in average cost.
Calculation Prep: Be ready to calculate "Months of Stock" by dividing total stock on hand by average monthly consumption. Pro Tips for Exam Day
Know Your Formulas: Memorize EOQ, safety stock, and reorder point calculations.
Real-World Application: Use case studies from your textbook to explain how technology (like RFID) impacts supply chain transparency.
Interactive Review: Use tools like Quizlet or Studocu for practice flashcards and past exam notes. Supply Chain Management - Midterm Review - Quizlet
Which of the following is a primary cause of the bullwhip effect?
a) Collaborative forecasting
b) Order batching
c) Just-in-time delivery
d) Direct shipment from manufacturer
Sample Question: "A fashion retailer buys winter coats for $80 each and sells them for $150. After January, leftover coats are sold to a discounter for $40 each. Demand is normally distributed with a mean of 1,000 and standard deviation of 200. What is the Critical Ratio (Cu/(Co+Cu)) and the optimal order quantity?"
The Framework (Newsvendor Model):
Present a table showing fixed costs and variable costs for two suppliers. Determine the volume threshold at which it becomes cheaper to switch from Supplier A to Supplier B. (This usually involves solving linear equations: $Cost_A = Fixed_A + (Var_A \times Volume)$).
Q3: Compare and contrast "Efficient" vs. "Responsive" Supply Chains. Provide an example of a product suitable for each.
Q4: Define the "Three Flows" in a supply chain.
Answer hints:
Answer hints:
Sample Question: "A small change in customer demand at the retail level causes increasingly larger fluctuations in orders as you move up the supply chain to the manufacturer and raw material supplier. Name this phenomenon and list three operational causes." supply chain management midterm exam questions
What the professor is testing: Your ability to link systems thinking with human behavior.
Pro Tip: Do not just name the causes. Explain why a grocery store ordering every 10 days hurts the distributor.
Duration: 90 minutes. Total marks: 100. Answer all questions. Show calculations and reasoning where required. Assume reasonable defaults and state them if used.
Section A — Multiple Choice (1.5 marks each, 15 marks) Choose the best answer. No justification required.
Which inventory policy orders a fixed quantity when inventory position falls to or below a reorder point? A) (s, S) policy B) (Q, R) policy C) Periodic review policy D) Base-stock policy
The bullwhip effect is primarily caused by: A) Stable downstream demand B) Demand signal processing and order batching C) Short lead times D) Perfect information sharing
In the Newsvendor model, the critical fractile is: A) Cu / (Cu + Co) B) Co / (Cu + Co) C) Expected demand D) Service level
A supplier’s lead time variability most directly increases: A) Holding costs only B) Safety stock requirements C) Fixed ordering cost D) Unit purchase price
Which metric measures the proportion of customer demand met immediately from on-hand inventory? A) Fill rate (volume) B) Service level (cycle) C) Stockout frequency D) On-time delivery
Total landed cost typically includes: A) Manufacturing cost only B) Transportation, tariffs, and inventory carrying costs C) Marketing and sales commissions D) Overhead but not duties
In a two-echelon supply chain with centralized forecasting, which benefit is expected? A) Increased bullwhip effect B) Reduced forecasting error due to aggregation C) Higher total safety stock vs decentralized D) Longer lead times
Which transportation mode usually offers the lowest cost per ton-mile for large, slow shipments? A) Air B) Truck C) Rail D) Parcel
Economic Order Quantity (EOQ) model assumes: A) Variable demand rate B) No ordering cost C) Constant demand rate and instantaneous replenishment D) Stochastic lead times
A Pareto (80/20) analysis for SKU management segments items based on: A) Lead time variability B) Contribution to total value or demand C) Supplier count D) Manufacturing complexity
Section B — Short Answer (5 marks each, 25 marks) Answer concisely.
Define safety stock and give the standard formula for safety stock when demand during lead time is normally distributed. Explain each term.
Explain the difference between fill rate and item fill rate. Why might managers prefer one over the other?
List three main components of total supply chain cost and give one managerial action to reduce each component.
Briefly describe how vendor-managed inventory (VMI) works and one major advantage and one potential drawback.
Explain the concept of postponement in product design and give one example where it is beneficial.
Section C — Problem Solving and Calculations (show work) (Total 40 marks)
(10 marks) EOQ with quantity discounts A company has annual demand of 24,000 units, ordering cost $80 per order, and holding cost 20% of unit cost per year. Unit price is $10 if order < 5,000 units, and $9 if order ≥ 5,000 units. Determine the cost-minimizing order quantity and the total annual relevant cost. (Show calculations; assume continuous-time EOQ.)
(10 marks) Single-period Newsvendor A retailer sells seasonal product with normally distributed demand mean 1,200 units and standard deviation 300 units. Selling price is $25, salvage value $5, and purchase cost $10. Find the optimal order quantity and the probability of stocking out. (Show steps and any z-value used.)
(10 marks) Reorder point with variable lead time Daily demand is 80 units (constant). Lead time is random: with probability 0.6 lead time = 4 days; with probability 0.3 lead time = 6 days; with probability 0.1 lead time = 10 days. Target cycle service level = 95%. Demand during lead time variability only arises from lead time (demand per day constant). Compute the reorder point including safety stock. (Show calculations and any assumptions.)
(10 marks) Two-stage supply chain safety stock pooling A company has two identical regional warehouses. Each experiences independent normally distributed demand with mean 500 units/month and standard deviation 200 units/month. Lead time is one month, and the target fill rate per warehouse is 95%. Compare total safety stock if warehouses operate independently vs. if demand is centralized and served from one location (i.e., pooled). Compute safety stock values and show the pooling benefit numerically. (Assume safety stock = z * sigma_LT, use z for 95% service level.)
Section D — Essay / Case (20 marks) Answer fully but concisely. Use headings where helpful.
Grading rubric (brief)
End of exam.
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Supply chain management (SCM) midterm exams typically test your ability to balance cost efficiency with customer service, focusing on the flow of products, information, and funds [31]. Below are core questions categorized by the primary themes of a standard introductory SCM course [5, 21]. 1. Fundamentals and Flow
Define Supply Chain Management: How does it differ from logistics? [5, 18].
Three Key Flows: Name and describe the three flows (Products, Information, and Funds) that move through a supply chain [31].
The Bullwhip Effect: What is the "bullwhip effect," and how can collaborative planning and information sharing reduce it? [6, 18].
Upstream vs. Downstream: Identify the "second-tier supplier" for an end-item manufacturer in a standard chain [19]. 2. Sourcing and Procurement
Make-or-Buy Decision: What factors should a company consider when deciding whether to manufacture a component in-house or outsource it? [12, 19, 20].
Sourcing Strategies: Explain the differences between single, dual, and multiple sourcing. Under what conditions is "sole sourcing" necessary? [20].
Total Cost of Ownership (TCO): Beyond the purchase price, what other costs (e.g., acquisition, operational, quality) are included in TCO? [20]. 3. Inventory and Forecasting
Inventory Calculation: If annual demand is 10,000 units, ordering cost is $50/order, and carrying cost is 25% of the $100 unit cost, calculate the Total Annual Cost for an order quantity of 1,000 units [8].
Economic Order Quantity (EOQ): What is the goal of the EOQ model, and which costs does it aim to minimize? [2, 11].
Forecasting Laws: Why are forecasts generally considered "wrong," and why are they still useful for long-term capacity planning? [4].
Safety Stock: Which forecast error metric is traditionally used to calculate safety stock levels? [10]. 4. Operations and Distribution
Lean vs. Responsive: Compare an "efficient" (lean) supply chain with a "responsive" supply chain. Which is better for innovative products? [14, 20].
Warehouse Types: What is the difference between a Consolidation Warehouse and a Breakbulk Warehouse? [19].
Theory of Constraints (TOC): How do you identify and "relieve" a bottleneck in a production process? [11, 12]. 5. Strategy and Performance
The 5 Pillars: Identify the five core stages of SCM: Plan, Source, Make, Deliver, and Return [21, 32, 35].
Facility Location: Using the Weighted Factory Location Model, how would you choose between three sites based on labor costs, currency stability, and proximity to markets? [19].
Supply Chain Metrics: Define Return on Assets (ROA) and explain how inventory turns affect overall profitability [11, 14].
AnswerA typical SCM midterm focuses on the integration of sourcing, making, and delivery, requiring students to solve quantitative problems like EOQ and TCO while explaining qualitative concepts like the Bullwhip Effect and Strategic Fit [2, 18, 20].
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Prepping for a Supply Chain Management (SCM) midterm can feel like trying to organize a global shipping fleet in a storm. To help you navigate, Mastering Your Supply Chain Management Midterm
Supply Chain Management is more than just moving boxes; it is the strategic coordination of the entire production flow—from raw materials to the final customer. At the midterm level, exams usually focus on foundational frameworks, process metrics, and strategic decision-making. 1. Core Frameworks to Memorize
Most midterm questions will revolve around the "Pillars" or "Phases" of SCM. Familiarize yourself with these variations, as different textbooks use different labels:
The 5 Pillars: Planning, Sourcing, Manufacturing, Logistics/Distribution, and Returns.
The 4 Major Decisions: Midterms often test your ability to balance Location, Production, Inventory, and Transportation. Ready to create a quiz
The SCOR Model (Plan, Source, Make, Deliver): This is the gold standard for many exams. 2. Sample Midterm Questions
Based on common SCM curriculum, here are the types of questions you should be prepared to answer: Conceptual Multiple Choice
Question: Which process metric describes a Starbucks store serving 20 customers per hour? Answer: This is an example of Throughput Rate. Question: What is the primary goal of "Reverse Logistics"?
Answer: Managing the flow of returned goods from the customer back to the seller or manufacturer. Strategic Short Answer
Compare Responsive vs. Efficient Supply Chains: When would you use a responsive chain (e.g., high-fashion) versus an efficient one (e.g., functional commodities like salt)?
The Bullwhip Effect: Define how small fluctuations in consumer demand can cause large swings in inventory orders further up the supply chain. Problem-Solving & Quantitative
Economic Order Quantity (EOQ): You may be asked to calculate the ideal order size to minimize total inventory costs.
Total Landed Cost: Calculating the sum of all costs associated with making and delivering a product to its final destination. 3. Key Concepts to "Ace" the Exam
The 5 C’s of Modern SCM: Look for questions regarding Collaboration, Connectivity, Customer-centricity, Control, and Compliance.
Inventory Management: Understand the difference between safety stock, cycle stock, and seasonal stock.
Sourcing vs. Procurement: Know that procurement is the process of getting the goods, while sourcing is the strategic choice of who to get them from. 4. Midterm Study Tips
Check Practice Exams: Sites like Docsity often host student-uploaded study guides and past solutions for courses like MGT 301.
Cheat Sheet Prep: If your professor allows a "cheat sheet," prioritize formulas for EOQ, Reorder Point (ROP), and standard deviation of demand.
Use Visuals: Map out a sample supply chain (e.g., for a smartphone) to see how each stage interacts—this helps with "big picture" essay questions. What Is Supply Chain Management? - IBM
Supply Chain Management Midterm Exam Questions
Introduction
Supply chain management is a critical component of business operations, encompassing the planning, coordination, and execution of activities involved in sourcing, producing, and delivering products or services to customers. A well-managed supply chain can provide a competitive edge, improve customer satisfaction, and increase profitability. This midterm exam assesses your understanding of key concepts, principles, and practices in supply chain management.
Section 1: Multiple Choice Questions (30 points)
What is the primary goal of supply chain management? a) To minimize costs b) To maximize profits c) To ensure timely delivery of products or services d) To balance cost, quality, and customer satisfaction
Which of the following is a type of supply chain strategy? a) Make-to-order b) Make-to-stock c) Assemble-to-order d) All of the above
What is the term for the process of managing the flow of goods, services, and information from raw material suppliers to end customers? a) Supply chain b) Logistics c) Distribution d) Procurement
Which of the following is a key performance indicator (KPI) in supply chain management? a) Inventory turnover b) Lead time c) Fill rate d) All of the above
What is the term for the integration of multiple supply chain functions, such as procurement, production, and logistics? a) Supply chain integration b) Supply chain optimization c) Supply chain visibility d) Supply chain agility
Section 2: Short Answer Questions (40 points)
Section 3: Essay Questions (30 points)
Choose one of the following essay questions and answer it in 2-3 pages.
Grading Criteria
Note
Good Luck!