Which manufacturing approach designs custom-built products tailored for a specific customer?

• A. Engineer-to-Order
• B. Assemble-to-Order
• C. Make-to-Order
• D. Make-to-Stock

Answer: (A)

Designing and building a product from scratch to meet a customer's unique requirements. Engineer-to-Order fits this idea best because each product is conceived, engineered, and customized specifically for one customer, with detailed design work and engineering approval before any manufacturing begins. This approach involves close collaboration with the customer, unique specifications, and often substantial lead times to develop the custom solution. In contrast, make-to-stock focuses on producing standard items for inventory, make-to-order builds off orders but usually uses existing designs, and assemble-to-order configures standard components after the order without bespoke engineering.