👉 Secondary engineering, also known as secondary processing or post-production engineering, refers to the additional steps taken after the primary engineering design phase to refine and optimize a product's performance, manufacturability, cost, and sustainability. This stage involves detailed analysis, simulation, prototyping, and testing to address any remaining issues or inefficiencies identified during the initial design. Secondary engineering can include activities like material selection, assembly process optimization, quality control measures, and lifecycle assessment to ensure the final product meets all necessary standards and customer expectations. It bridges the gap between conceptual design and mass production, aiming to enhance the product's overall value and feasibility.