Inspection methods are techniques used to examine products, materials, or systems to ensure they meet specified standards and requirements. Common methods include visual inspection, where inspectors look for defects or irregularities, and non-destructive testing (NDT), which evaluates the integrity of materials without causing damage. Other methods include measurement inspections, where tools are used to assess dimensions and tolerances, and functional testing, which checks if a product operates as intended. Each method plays a crucial role in quality control across various industries, including manufacturing, construction, and aerospace, ensuring safety and reliability in products and services.