What is manufacturing and how it classified?

Manufacturing is the process of converting raw materials into finished goods through various techniques, including machining, assembly, and fabrication. It is typically classified into several categories: discrete manufacturing, which involves the production of distinct items like automobiles; process manufacturing, which focuses on the production of goods in bulk, such as chemicals or food products; and additive manufacturing, which builds objects layer by layer, commonly used in 3D printing. Additionally, manufacturing can be categorized by production volume, such as job shop, batch, mass, and continuous production.