APICS Demand Management 4 — Questions and Answers
Question 1: What is 'demand sensing' in modern supply chain management?
- Using customer surveys to predict long-term demand trends
- Applying machine learning to short-term demand signals for near-real-time forecasting (Correct answer)
- Sensing warehouse capacity constraints and alerting planners
- Monitoring competitor pricing to adjust demand forecasts
Correct answer: Applying machine learning to short-term demand signals for near-real-time forecasting
Demand sensing uses high-frequency data such as POS, shipments, and orders to generate highly accurate short-horizon demand signals using advanced analytics.
Question 2: A forecast shows 1,000 units but actual demand is 1,200 units. What is the forecast bias in this scenario?
- The forecast is unbiased because errors are random
- The forecast is negatively biased (under-forecast) (Correct answer)
- The forecast is positively biased (over-forecast)
- Bias cannot be determined from a single period
Correct answer: The forecast is negatively biased (under-forecast)
When actual demand consistently exceeds the forecast, the model has a negative bias, meaning it systematically under-predicts demand.
Question 3: Which action helps reduce the 'bullwhip effect' in a supply chain?
- Increasing order batch sizes to gain quantity discounts
- Sharing point-of-sale data across all supply chain tiers (Correct answer)
- Placing orders only at the end of each month
- Maintaining separate inventory buffers at each tier
Correct answer: Sharing point-of-sale data across all supply chain tiers
Sharing downstream demand data with upstream partners reduces order variability amplification by aligning all tiers to actual consumer demand.
Question 4: In the context of APICS, what is a 'demand plan'?
- A list of open customer orders awaiting shipment
- A projection of expected future customer demand used to drive supply planning (Correct answer)
- A contract between a company and its key customers specifying volumes
- A report showing historical sales performance by region
Correct answer: A projection of expected future customer demand used to drive supply planning
A demand plan is a forward-looking projection of anticipated customer demand used as input to supply, production, and inventory planning processes.
Question 5: Which of the following is a key output of the demand management process?
- Supplier scorecards
- Unconstrained demand forecast (Correct answer)
- Bill of materials
- Routing sheets
Correct answer: Unconstrained demand forecast
The unconstrained demand forecast captures what customers are expected to demand independent of supply limitations, serving as the baseline for S&OP.
Question 6: A company implements vendor-managed inventory (VMI). How does this affect demand visibility?
- It reduces the supplier's visibility into end-customer demand
- It gives the supplier direct access to customer inventory and consumption data (Correct answer)
- It eliminates the need for demand forecasting entirely
- It transfers demand forecasting responsibility to the logistics provider
Correct answer: It gives the supplier direct access to customer inventory and consumption data
VMI provides suppliers with real-time access to customer inventory levels and consumption rates, dramatically improving demand visibility and replenishment accuracy.
Question 7: What does 'forecast consumption' mean in a master scheduling context?
- Reducing the forecast by the amount of actual customer orders received (Correct answer)
- Increasing safety stock to consume excess forecasted demand
- Allocating forecast quantities to specific production orders
- Converting forecast units into raw material requirements
Correct answer: Reducing the forecast by the amount of actual customer orders received
Forecast consumption (also called forecast netting) replaces forecasted demand with actual customer orders as they arrive, preventing double-counting in the master schedule.
APICS Demand Management 4
What is 'demand sensing' in modern supply chain management?