NPI New Product Introduction — the full process of bringing a new product from concept to production.
BOM Bill of Materials — the complete list of parts, components, and materials that go into a product.
Should-cost An estimate of what a part should cost based on materials, labor, and process — not what suppliers charge.
Design-to-cost Setting a cost target before engineering begins so every design choice stays within budget.
DFM Design for Manufacturing — designing parts so they're easy and cheap to manufacture, not just functional.
Tooling The molds, dies, and fixtures needed to mass-produce a part — often the biggest upfront cost.