To prevent lapses in quality assurance, electronically measuring the materials and components according to specifications prior to manufacturing is the strongest control. This ensures that any defects or issues are detected before the production process begins, thereby preventing faulty materials from entering the manufacturing process. It is a proactive measure that helps maintain high standards and reduce the likelihood of quality issues later on. Identifying and rejecting completed products, examining partially assembled products, and manually inspecting received materials are all important but more reactive measures that catch issues after they have already progressed through the manufacturing stages.