Suppliers and Inventory

Objective: Explain supply chain and supplier, distinguish their meanings, and apply them to a described case.

Supply chain: A supply chain links sourcing, production, distribution, and related information. Supplier: A supplier provides inputs or services under agreed conditions. Operations translate a promise to customers into a repeatable process. A local improvement does not necessarily improve the entire system if another required step remains the bottleneck. Inventory and supplier decisions involve trade-offs among service, cost, reliability, and cash. Quality includes meeting appropriate expectations and learning from failures. Track evidence across the process rather than relying only on a final outcome. Application: A product moves from material suppliers to customers. This most directly illustrates supply chain. A firm obtains materials from an outside provider. This most directly illustrates supplier.

Objective: Explain inventory and stockout, distinguish their meanings, and apply them to a described case.

Inventory: Inventory is goods or materials held for production or sale under a defined accounting scope. Stockout: A stockout occurs when needed inventory is unavailable. Operations translate a promise to customers into a repeatable process. A local improvement does not necessarily improve the entire system if another required step remains the bottleneck. Inventory and supplier decisions involve trade-offs among service, cost, reliability, and cash. Quality includes meeting appropriate expectations and learning from failures. Track evidence across the process rather than relying only on a final outcome. Application: A shop stores items before customer purchase. This most directly illustrates inventory. A customer order cannot be filled from current stock. This most directly illustrates stockout.

Objective: Explain safety stock and supplier concentration, distinguish their meanings, and apply them to a described case.

Safety stock: Safety stock buffers uncertainty in demand or replenishment under a chosen policy. Supplier concentration: Concentration creates dependence on a limited set of providers. Operations translate a promise to customers into a repeatable process. A local improvement does not necessarily improve the entire system if another required step remains the bottleneck. Inventory and supplier decisions involve trade-offs among service, cost, reliability, and cash. Quality includes meeting appropriate expectations and learning from failures. Track evidence across the process rather than relying only on a final outcome. Application: A firm keeps extra material for delivery delays. This most directly illustrates safety stock. One disrupted supplier stops most production. This most directly illustrates supplier concentration.