CSCA key terms

The tendency for order variability to grow as it moves upstream from final customers to suppliers, driven by demand signal distortion, order batching, price promotions, and shortage gaming. It causes excess inventory and poor capacity utilization across the chain.

Any loss of accuracy or timeliness in information about real end-customer demand as it passes between supply chain partners, often caused by forecasting from orders rather than consumption data, leading to amplified ordering.

Point-of-sale data captured at the retail checkout, recording actual customer purchases. Sharing it upstream lets suppliers forecast from true consumption rather than retailer orders, reducing distortion and inventory swings.

An arrangement where the supplier monitors a customer's inventory levels and stock position and takes responsibility for replenishing them, typically under agreed service and stock-cover targets rather than customer-raised purchase orders.

Inventory held at the customer's location but owned by the supplier until it is consumed or sold. The supplier bears carrying cost and obsolescence risk, while the customer gains availability without tying up working capital.

Extra inventory held to buffer against forecast error and lead time variability, sized so that demand during the replenishment lead time is covered to a chosen service level. It trades carrying cost against stockout risk.

The inventory position at which a replenishment order should be triggered, usually equal to expected demand during lead time plus safety stock. It protects availability without continuous review of every unit.

The probability that demand is met from stock during a replenishment cycle, or the target percentage of order lines filled complete. Higher targets require disproportionately more safety stock because of the normal curve's tail.

The proportion of demand or order lines actually shipped from available stock, expressed as units or lines served divided by total requested. It measures availability outcomes rather than the probability of no stockout.

A situation where inventory is unavailable to satisfy demand, resulting in lost sales, backorders, or substitution. Repeated stockouts erode customer trust and can shift demand to competitors permanently.

Customer demand that cannot be filled immediately and is held open to be shipped when stock arrives. Backorders preserve revenue but raise administrative cost and may breach agreed delivery terms.

The total cost of holding inventory over time, including capital tied up, storage, insurance, taxes, handling, shrinkage, and obsolescence. It is usually expressed as a percentage of unit value per year.

The order size that minimizes the sum of ordering cost and inventory carrying cost for a stable item, calculated from annual demand, cost per order, and annual holding cost per unit.

The elapsed time between initiating an activity and completing it, such as from placing a purchase order to receiving goods, or from customer order to delivery. Variability in lead time drives buffer requirements.

The total time from customer order receipt to delivery, covering order processing, picking, packing, and transport. It is a core measure of responsiveness and a key promise made in service agreements.

Standard international trade terms published by the International Chamber of Commerce that define which party arranges and pays for transport, insurance, and customs clearance, and where risk transfers between seller and buyer.

An Incoterm under which the seller delivers goods on board the vessel at the named port of shipment, after which risk and cost pass to the buyer. It applies only to sea and inland waterway transport.

A transport document issued by a carrier acknowledging receipt of goods, serving as a contract of carriage and, when negotiable, as a document of title that must be surrendered to claim the cargo.

An intermediary that arranges transport, consolidates shipments, prepares documentation, and coordinates customs clearance on behalf of shippers, without necessarily operating the vehicles or vessels itself.

The process of declaring imported or exported goods to customs authorities, paying applicable duties and taxes, and obtaining permission to release the goods into free circulation or onward movement.

The total cost of a purchased item delivered to the buyer's location, including purchase price, freight, insurance, duties, tariffs, handling, and currency conversion. It is the correct basis for sourcing comparisons.

A distribution technique where inbound shipments are unloaded and transferred directly to outbound vehicles with little or no storage, reducing handling and inventory while requiring tight scheduling and reliable inbound flows.

A facility that receives finished goods and stores, sorts, and ships them to customers or retail outlets, focused on high throughput and fast order fulfillment rather than long-term storage.

A purchasing evaluation that adds all costs of acquiring, using, maintaining, and disposing of a good or service over its life, revealing that the lowest purchase price may not be the lowest overall cost.

The systematic examination of an organization's purchasing spend by category, supplier, and business unit to identify consolidation opportunities, maverick buying, and negotiation leverage.

A strategic procurement approach that groups similar purchases into categories and manages each with tailored sourcing strategy, supplier relationships, and performance targets rather than transaction by transaction.

A structured process of analyzing spend, evaluating supply markets, and selecting suppliers to achieve long-term value in cost, quality, risk, and innovation, rather than simply seeking the lowest quote.

Purchases made outside negotiated contracts or approved procurement channels, which forfeits volume discounts and undermines spend visibility, contract compliance, and supplier performance management.

A structured set of metrics used to rate suppliers on delivery, quality, cost, responsiveness, and compliance, typically reviewed periodically to drive improvement and inform sourcing decisions.

A contract clause or document specifying measurable performance obligations such as delivery windows, fill rates, uptime, and remedies for shortfall. It converts service expectations into enforceable commitments.

Deliberately using one supplier for an item, often to gain volume leverage and a closer partnership. It simplifies management but concentrates supply risk, so contingency planning is essential.

Splitting an item's volume between two qualified suppliers to reduce dependence on any single source and maintain competitive tension, at the cost of lower volume leverage and added qualification effort.

Estimating future demand for products or services using historical data, market intelligence, and statistical methods. Accuracy depends on the forecast horizon, data quality, and treatment of promotions and seasonality.

The difference between forecast and actual demand, measured by metrics such as mean absolute deviation or mean absolute percentage error. Its size and bias determine required safety stock and planning reliability.

A recurring cross-functional process that balances demand plans with supply capabilities over a rolling horizon, aligning sales, marketing, operations, and finance on one consensus plan and its financial implications.

A time-phased plan stating which finished products and quantities will be produced in each period, derived from the aggregate plan and constrained by capacity, materials, and demand priorities.

A calculation that explodes a master schedule into component and raw material requirements using the bill of materials, inventory records, and lead times, producing planned orders and exception messages.

A structured list of all components, subassemblies, and quantities needed to make one unit of a finished product, forming the basis for material planning, costing, and production documentation.

A method of verifying inventory accuracy by counting a small subset of items on a rotating schedule rather than shutting down for a full physical count, often prioritizing high-value or high-error items.

The degree to which system stock balances match physical counts in quantity, location, and status. Poor accuracy undermines planning, causes stockouts and expediting, and is typically measured by count tolerance.

A lean technique that diagrams the flow of materials and information required to deliver a product, marking value-adding and non-value-adding steps to expose waste and prioritize improvement efforts.

In lean thinking, any activity that consumes resources without creating value for the customer, commonly grouped as overproduction, waiting, transport, overprocessing, inventory, motion, and defects.

Continuous, incremental improvement pursued by the people doing the work, using small structured changes and rapid cycles rather than one-off large projects. It builds capability and sustains gains over time.

A workplace organization method with five steps: sort, set in order, shine, standardize, and sustain. It reduces search time, improves safety, and makes abnormal conditions visible on the shop floor.

A documented, repeatable definition of the best current method for a task, including cycle time, work sequence, and required inventory. It provides the baseline against which improvements are measured.

The available production time divided by customer demand rate, setting the pace at which a process must complete one unit to meet demand without overproduction or delay.

A signaling system that authorizes production or replenishment only when downstream consumption frees capacity, typically using cards or electronic signals to pull material through the process.

A production and delivery philosophy in which materials arrive as needed for the next step, minimizing inventory and exposing problems. It depends on reliable quality, stable schedules, and short lead times.

A statistically driven improvement methodology targeting defect rates near 3.4 per million opportunities, using the DMAIC sequence of define, measure, analyze, improve, and control to reduce variation.

The five-phase Six Sigma project roadmap: define the problem and customer requirements, measure current performance, analyze root causes, improve the process, and control the gains with monitoring and standards.

A statistical measure of how well a stable process meets specification limits relative to its variation, expressed as indices such as Cp and Cpk. It indicates whether the process can consistently produce conforming output.

A mistake-proofing device or design feature that prevents an error from occurring or makes it immediately obvious, such as fixtures that allow parts to fit in only one orientation.